CN209166993U - A kind of anti-optical lever falls modulus measurer - Google Patents

Abstract

The utility model discloses a Young's modulus measuring instrument for preventing light from falling off a lever. There is an adjustment knob, the bottom end of the adjustment knob is in contact with the surface of the pillar, the surface of the sliding cylinder is fixedly connected with the two ends of the right side of the flat plate, and the left side of the upper end of the flat plate is provided with an anti-drop structure. The upper end of the light-proof lever is provided with a plane mirror through the mounting seat, and the light-proof lever falls off the Young's modulus measuring instrument. , through the anti-drop structure to realize the rotation support of the optical lever, to ensure that the optical lever is always in the U-shaped plate during the measurement process, to prevent the optical lever from falling and damage, to reduce the workload of personnel, to ensure the measurement quality, and to improve the Efficiency of Young's modulus measuring instrument.

Description

A light-proof lever drop Young's modulus measuring instrument

technical field

The utility model relates to the technical field of measuring and teaching equipment, in particular to a Young's modulus measuring instrument that prevents light from falling off a lever.

Background technique

Young's modulus is a physical quantity that describes the ability of a solid material to resist deformation. The value of Young's modulus indicates the rigidity of the material. The larger the Young's modulus, the less likely it is to deform. The Young's modulus of elasticity is the selected material for mechanical parts. One of the bases is the parameters commonly used in engineering design. The measurement of Young's modulus is of great significance to the study of the mechanical properties of various materials such as metal materials, optical fiber materials, semiconductors, nanomaterials, polymers, ceramics, rubber, etc. It can also be used in mechanical parts design, biomechanics, geology and other fields. In the method of measuring the resistance of solid materials to deformation, a special Young's modulus measuring instrument is required for auxiliary support, but the traditional Young's modulus measuring instrument, structural It is too simple, inconvenient to install and use, slow to measure, and the effect is not good, which brings great trouble to the user, and can not realize the protection of the optical lever according to the needs, and cannot avoid the occurrence of the optical lever falling and damage. Invisibly increase the workload of personnel, and it is difficult to guarantee the measurement quality, resulting in low efficiency of the Young's modulus measuring instrument. Therefore, the realization of a light-proof lever drop Young's modulus measuring instrument that can solve such problems Imperative.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects, and to provide a Young's modulus measuring instrument for light-proof lever falling, which is simple in structure, convenient in installation and use, efficient and fast in measurement, and brings great advantages to the use of users. Great convenience, and can realize the rotation support of the optical lever through the anti-drop structure according to the needs, to ensure that the optical lever is always in the U-shaped plate during the measurement process, to avoid the optical lever from falling and damage, and reduce the workload of personnel. , which ensures the measurement quality, improves the use efficiency of the Young's modulus measuring instrument, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a light-proof lever falling Young's modulus measuring instrument, including a base plate and a base, the upper end of the base plate is provided with pillars on both sides, and the surfaces of the pillars are slidably connected with sliding surfaces. There is an adjustment knob in the arc surface threaded hole of the sliding cylinder, the bottom end of the adjustment knob is in contact with the surface of the pillar, the surface of the sliding cylinder is fixedly connected with the two ends of the right side of the plate, and the left side of the upper end of the plate is provided with an anti-drop Drop structure, in the anti-drop structure, the upper end of the rotating table is provided with a plane mirror through the mounting seat, the right side of the upper end mounting seat of the rotating table is provided with a light lever, the right end of the light lever is provided with a contact, and the top of the pillar is fixedly connected with the bottom surface of the top plate The bottom end of the top plate is provided with a first steel wire chuck, the bottom end of the first steel wire chuck is provided with a steel wire to be tested, the bottom end of the steel wire to be tested is provided with a second steel wire chuck, and the bottom end of the second steel wire chuck passes through The line body is provided with a weight plate, the upper end threaded hole of the base is threadedly connected with the threaded hole on the bottom end mounting plate of the sliding column through bolts, the upper end of the sliding column is provided with an adjustment structure, and the rear side of the arc surface of the sliding sleeve in the adjustment structure is provided with The straight scale is distributed parallel to the axis of the sliding column, and the front side of the arc of the sliding sleeve in the adjustment structure is provided with a telescope that is perpendicular to the axis of the sliding column through the mounting seat.

As a preferred technical solution of the present invention, the anti-drop structure includes a U-shaped plate, the upper end of the flat plate is provided with a U-shaped plate on the left side, the inner wall of the U-shaped plate is rotatably connected with a rotating shaft through a bearing, and the middle part of the rotating shaft is connected with a rotating shaft. Equipped with a turntable.

As a preferred technical solution of the present invention, the adjustment structure includes a sliding sleeve, the surface of the sliding column is slidably connected with the sliding sleeve, the arc surface threaded hole of the sliding sleeve is provided with an adjustment bolt, and the bottom end of the adjustment bolt is connected with the sliding sleeve. The surface of the strut is in contact with the connection.

As a preferred technical solution of the present invention, a through hole is provided on the right side of the upper end of the flat plate. For contact connection, the through hole is arranged corresponding to the first wire chuck.

As a preferred technical solution of the present invention, the bottom ends of the front and rear sides of the bottom plate are provided with fixing plates, and the upper end threaded holes of the fixing plates are provided with fixing bolts.

Compared with the prior art, the beneficial effects of the present utility model are as follows: the light-proof lever falls off the Young's modulus measuring instrument, the structure is simple, the tightness adjustment knob can realize the sliding of the sliding cylinder on the pillar, thereby changing the height of the flat plate, Tighten the adjusting bolt to realize the sliding of the sliding sleeve on the sliding column, thereby changing the height of the telescope, and the adjustment is convenient. When it is vertical, a scale value of the straight scale can be read from the telescope. When adding a weight to the weight plate, the second wire clamp extends down, and the contact moves with the second wire clamp. The bearing is rotatably connected to the inner wall of the U-shaped plate to realize the deflection of the plane mirror. The personnel can watch remotely through the telescope. With the assistance of the straight scale, a scale value on the straight scale can be read from the telescope. The difference between the two scale values is based on Hooke. The law calculates the Young's modulus, and the measurement is efficient and fast, which brings great convenience to the user. During the measurement process, the rotating shaft realizes the rotational support of the optical lever, ensuring that the optical lever never leaves the U shape during the measurement process. plate, to avoid the fall and damage of the optical lever, reduce the workload of personnel, ensure the measurement quality, and improve the use efficiency of the Young's modulus measuring instrument.

Description of drawings

Fig. 1 is the front schematic view of the structure of the utility model;

Fig. 2 is the side schematic diagram of the structure of the utility model anti-dropping structure;

3 is a schematic side view of the structural adjustment structure of the present invention.

In the picture: 1 base plate, 2 pillars, 3 slide cylinders, 4 adjustment knobs, 5 flat plates, 6 anti-drop structures, 61 U-shaped plates, 62 rotating shafts, 63 rotating tables, 7 plane mirrors, 8 light levers, 9 contacts, 10 Top plate, 11 first wire chuck, 12 steel wire to be tested, 13 second steel wire chuck, 14 weight plate, 15 fixing plate, 16 base, 17 sliding column, 18 adjusting structure, 181 sliding sleeve, 182 adjusting bolt, 19 Telescope, 20 straight ruler, 21 through hole, 22 fixing bolt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a light-proof lever falling Young's modulus measuring instrument, comprising a base plate 1 and a base 16, the base plate 1 and the base 16 provide bottom support, and the upper end of the base plate 1 There are struts 2 on both sides. The struts 2 provide the function of supporting and connecting, and also provide sliding support for the sliding cylinder 3. The surface of the strut 2 is slidably connected with the sliding cylinder 3, and the cambered threaded hole of the sliding cylinder 3 is provided with an adjustment knob 4. , the bottom end of the adjustment knob 4 is in contact with the surface of the pillar 2, the surface of the sliding cylinder 3 is fixedly connected with the two ends of the right side of the plate 5, loosen the adjustment knob 4, the sliding cylinder 3 slides on the pillar 2, and adjust the Appropriate height, the flat plate 5 provides platform support, an anti-drop structure 6 is provided on the left side of the upper end of the flat plate 5, and the anti-drop structure 6 includes a U-shaped plate 61, and a U-shaped plate 61 is provided on the left side of the upper end of the flat plate 5. The U-shaped plate The inner wall of 61 is rotatably connected with a rotating shaft 62 through a bearing. The middle of the rotating shaft 62 is provided with a rotary table 63. The rotary table 63 provides a platform support for the upper plane mirror 7. During the measurement process, the rotating shaft 62 realizes the rotation support for the light lever 8, ensuring that The optical lever 8 is always in the U-shaped plate 61 during the measurement process, so as to avoid the fall of the optical lever 8 and damage. In the anti-drop structure 6, the upper end of the rotating table 63 is provided with a plane mirror 7 through the mounting seat, and the upper end mounting seat of the rotating table 63 is provided with a plane mirror 7. The right side is provided with a light lever 8, and the right end of the light lever 8 is provided with a contact 9. When the light lever 8 is horizontal and the plane mirror 7 is vertical, a scale value of the straight scale 20 is read from the telescope 19. A weight is added in 14, the second wire clamp 13 is extended downward, and the contact 9 moves as the second wire clamp 13 descends. Since the rotating shaft 62 is rotatably connected to the inner wall of the U-shaped plate 61 through the bearing, the deflection of the plane mirror 7 is realized. , the personnel watch remotely through the telescope 19, and with the assistance of the straight ruler 20, a scale value on the straight scale 20 is read from the telescope 19, and the difference between the two scale values is calculated according to Hooke's law. Young's modulus, pillar 2 The top of the top plate 10 is fixedly connected with the bottom surface of the top plate 10, the top plate 10 provides a place for the first wire clamp 11 below, and the bottom end of the top plate 10 is provided with a first steel wire The bottom end is provided with a steel wire 12 to be tested, the steel wire 12 to be tested is a measuring body that resists deformation, the bottom end of the steel wire 12 to be tested is provided with a second steel wire clamp 13, and the second steel wire clamp 13 realizes the connection between the steel wire to be tested 12 and the weight. The upper end of the code plate 14 is connected to the wire body. The bottom end of the second wire clamp 13 is provided with a weight plate 14 through the wire body. The weight plate 14 realizes the placement of the weights. , the through hole 21 is convenient for the second wire clamp 13 and the steel wire 12 to be tested up and down, the diameter of the through hole 21 is larger than the length and width of the second wire clamp 13, the upper surface of the wire clamp 13 and the bottom end of the contact 9 For contact connection, the through hole 21 is correspondingly arranged with the first wire clamp 11, the upper end threaded hole of the base 16 is threadedly connected with the threaded hole on the bottom end mounting plate of the sliding column 17 through bolts, and the upper end of the sliding column 17 is provided with an adjustment structure 18, The adjusting structure 18 includes a sliding sleeve 181, and the surface of the sliding column 17 is slidably connected with the sliding sleeve 1 81. Adjusting bolts 182 are provided in the threaded holes of the arc surface of the sliding sleeve 181. The bottom end of the adjusting bolts 182 is in contact with the surface of the sliding column 17. In the adjustment structure 18, the arc surface of the sliding sleeve 181 is provided with The straight scale 20 with the axis parallel to the distribution, the adjusting bolt 182 is tightened and tightened to realize the sliding of the sliding sleeve 181 on the sliding column 17, thereby changing the height of the telescope 19. The telescope 19 is convenient to observe the numerical change on the straight scale 20 when the plane mirror 7 is deflected, and the adjustment structure 18 The arc front side of the middle sliding sleeve 181 is provided with a telescope 19 vertically distributed with the axis of the sliding column 17 through the mounting seat, the bottom ends of the front and rear sides of the bottom plate 1 are provided with fixing plates 15, and the upper end threaded holes of the fixing plate 15 are provided with fixing bolts 22. Fast and stable installation of the device is achieved by rotating the fixing bolt 22 and the threaded connection of the threaded hole at the installation site.

When in use: by rotating the fixing bolt 22 and the threaded connection of the threaded hole at the installation site, the fast and stable installation of the device is realized, loosen the adjusting knob 4, the sliding cylinder 3 slides on the pillar 2, and adjust the appropriate height of the flat plate 5. The measuring wire 12 is fixed under the top plate 11 by the first wire clamp 11, and the lower end of the steel wire 12 to be measured is fixed with the upper end of the second wire clamp 13. At this time, the optical lever 8 is in a horizontal state, and the plane mirror 7 is above the vertical plate 5. On the surface, tighten the adjusting bolt 182 to realize the sliding of the sliding sleeve 181 on the sliding column 17, thereby changing the height of the telescope 19 and adjusting it to the optimum viewing height, and reading a scale value of the straight scale 20 from the telescope 19, A weight is added to the weight plate 14, the second wire clamp 13 is extended downward, and the contact 9 moves as the second wire clamp 13 descends. Since the rotating shaft 62 is rotatably connected to the inner wall of the U-shaped plate 61 through the bearing, a plane mirror is realized. The deflection of 7, the personnel watch remotely through the telescope 19, with the aid of the straight scale 20, a scale value on the straight scale 20 is read from the telescope 19, and the difference between the two scale values is calculated according to Hooke's law. Young's modulus , During the measurement process, the rotating shaft 62 realizes the rotational support of the optical lever 8, ensuring that the optical lever 8 never leaves the U-shaped plate 61 during the measurement process, and avoids the optical lever 8 from falling and being damaged.

The adjusting knob 4 of the present utility model realizes the sliding of the sliding cylinder 3 on the column 2, thereby changing the height of the flat plate 5, and tightening the adjusting bolt 182 to realize the sliding of the sliding sleeve 181 on the sliding column 17, thereby changing the height of the telescope 19, The adjustment is convenient. The fast and stable installation of the device is realized by rotating the fixing bolt 22 and the threaded connection of the threaded hole at the installation site. When the optical lever 8 is horizontal and the plane mirror 7 is vertical, a scale value of the straight scale 20 is read from the telescope 19, When a weight is added to the weight plate 14, the second wire clamp 13 extends downward, and the contact 9 moves with the descending of the second wire clamp 13, because the shaft 62 is rotatably connected to the inner wall of the U-shaped plate 61 through the bearing , to realize the deflection of the plane mirror 7, the personnel remotely watch through the telescope 19, and under the assistance of the straight scale 20, a scale value on the straight scale 20 is read from the telescope 19, and the difference between the two scale values is calculated according to Hooke's law. Modulus, the measurement is efficient and fast, which brings great convenience to the user. During the measurement process, the rotating shaft 62 realizes the rotational support of the optical lever 8, ensuring that the optical lever 8 never leaves the U shape during the measurement process. The plate 61 prevents the optical lever 8 from falling and damage, reduces the workload of personnel, ensures the measurement quality, and improves the use efficiency of the Young's modulus measuring instrument.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. An anti-light lever fall Young's modulus measuring instrument, comprising a base plate (1) and a base (16), characterized in that: the upper end of the base plate (1) is provided with pillars (2) on both sides, and the pillars ( A sliding cylinder (3) is slidably connected to the surface of the sliding cylinder (3), and an adjusting knob (4) is arranged in the cambered threaded hole of the sliding cylinder (3). The surface of the sliding cylinder (3) is fixedly connected with the two ends on the right side of the flat plate (5). The upper left side of the flat plate (5) is provided with an anti-dropping structure (6), and the rotating table (63) in the anti-dropping structure (6) ) is provided with a plane mirror (7) at the upper end of the mounting seat, a light lever (8) is provided on the right side of the upper end mounting seat of the rotary table (63), and a contact (9) is provided on the right end of the light lever (8), and the pillar (2) ) is fixedly connected with the bottom surface of the top plate (10), the bottom end of the top plate (10) is provided with a first wire clamp (11), and the bottom end of the first wire clamp (11) is provided with a steel wire (12) to be tested , the bottom end of the steel wire (12) to be tested is provided with a second steel wire clamp (13), the bottom end of the second steel wire clamp (13) is provided with a weight plate (14) through the wire body, and the upper end of the base (16) The threaded holes are threadedly connected to the threaded holes on the bottom end mounting plate of the sliding column (17) through bolts. The upper end of the sliding column (17) is provided with an adjustment structure (18), and the arc surface of the sliding sleeve (181) in the adjustment structure (18) The rear side is provided with a straight scale (20) distributed parallel to the axis of the sliding column (17). telescope (19). 2. The light-proof lever drop Young's modulus measuring instrument according to claim 1, wherein the drop-proof structure (6) comprises a U-shaped plate (61), and the flat plate (5) A U-shaped plate (61) is arranged on the left side of the upper end of the upper end, and the inner wall of the U-shaped plate (61) is rotatably connected with a rotating shaft (62) through a bearing, and a rotary table (63) is arranged in the middle of the rotating shaft (62). 3. The light-proof lever drop Young's modulus measuring instrument according to claim 1, characterized in that: the adjustment structure (18) comprises a sliding sleeve (181), and the surface of the sliding column (17) A sliding sleeve (181) is slidably connected, and an adjusting bolt (182) is arranged in the arc surface threaded hole of the sliding sleeve (181), and the bottom end of the adjusting bolt (182) is in contact with the surface of the sliding column (17). 4. A light-proof lever drop Young's modulus measuring instrument according to claim 1, characterized in that: a through hole (21) is provided on the right side of the upper end of the flat plate (5), and the through hole (21) The diameter is greater than the length and width of the second wire clamp (13), the upper surface of the wire clamp (13) is in contact with the bottom end of the contact (9), and the through hole (21) is connected to the first wire clamp (11). ) corresponds to the setting. 5. A light-proof lever drop Young's modulus measuring instrument according to claim 1, characterized in that: the bottom ends of the front and rear sides of the bottom plate (1) are provided with fixed plates (15), and the fixed plates ( 15) is provided with a fixing bolt (22) in the upper threaded hole.