Long-distance and short-distance Young modulus tester
By designing a Young's modulus measuring instrument that can be used for both short and long distances, and by adopting a digital display scale and a movable reading telescope, the problems of low space utilization and difficulty in adjusting the optical lever in traditional Young's modulus measuring instruments have been solved, enabling flexible measurement and efficient operation in the laboratory.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-07
AI Technical Summary
Existing Young's modulus measuring instruments have low laboratory space utilization, and are particularly difficult to operate when adjusting the optical lever. Furthermore, the traditional integrated design of the reading telescope and scale makes it difficult to adjust the optical lever.
A dual-purpose Young's modulus measuring instrument for both short and long distances was designed. It adopts a digital display scale device and a movable reading telescope device, combined with an optical lever reflector and a reading telescope device. The instrument is equipped with a level and foot adjustment handwheel to achieve rapid leveling and measurement adjustment.
It enables flexible measurement and adjustment within a limited laboratory space, simplifies the adjustment process of the optical lever, and improves the accuracy of measurement and ease of operation.
Smart Images
Figure CN224096294U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of university physics mechanics experimental instrument, especially far, near distance two purpose Young's modulus measuring instrument. BACKGROUND
[0002] The general situation of the prior art is that the scale reading telescope and Young's modulus measuring frame are combined, the scale is on the scale bracket of the scale reading telescope, and the area of the laboratory is large, and it is very inconvenient to carry out the experiment, especially when adjusting the light lever. UTILITY MODEL CONTENT
[0003] Therefore, the utility model provides a far, near distance two purpose Young's modulus measuring instrument, which can adjust the distance by moving the digital scale device installed on the stand, which not only facilitates the adjustment of the light lever but also reduces the experimental space and facilitates the operation of the whole experiment.
[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0005] A far, near distance two purpose Young's modulus measuring instrument, comprising a measuring frame and a reading telescope device, the measuring frame comprises a base, a connecting plate, a stand, a workbench, an upper cross beam and a digital scale device, the connecting plate is installed on the base, the stand is installed on the connecting plate, and the digital scale device, the upper cross beam and the workbench are sleeved on the stand from top to bottom.
[0006] Further, the upper cross beam is provided with an upper chuck at the bottom, the workbench is provided with a level, a lower chuck and a front supporting rod at the top, the lower chuck penetrates through the workbench, and a steel wire is connected between the upper chuck and the lower chuck;
[0007] The front supporting rod is connected with the light lever at the top, and a plane mirror is rotatably connected to the light lever; a counterweight hammer is arranged on the left side of the light lever, and a rear supporting rod is connected to the left side of the counterweight hammer;
[0008] A lower chuck contact platform is arranged on the lower chuck and located above the workbench, and the rear supporting rod contact is connected with the lower chuck contact platform;
[0009] The lower chuck is connected with a weight disc at the bottom.
[0010] Further, the reading telescope device comprises a reading telescope base, a reading telescope stand, a lifting connecting barrel, a lifting connecting barrel locking pin, a reading telescope, a telescope tilt adjusting pin, a telescope tilt plate, a telescope support, an eyepiece with a scale plate and an objective lens group.
[0011] The reading telescope stand is installed on the reading telescope base, the lifting connecting cylinder sleeve is installed on the reading telescope stand, the lifting connecting cylinder locking nail is installed on the lifting connecting cylinder, the lifting connecting cylinder is locked on the reading telescope stand through the lifting connecting cylinder locking nail, the telescope tilting piece is installed on the telescope support, the telescope support bottom left side is equipped with the telescope tilting adjusting nail, the eyepiece with the scale plate is installed on the reading telescope left side, and the objective lens group is installed on the reading telescope right side.
[0012] Further, the digital display scale device comprises a digital display scale and a digital display scale power socket, the digital display scale faces the base direction, and the digital display scale power socket is located at the top of the digital display scale.
[0013] Further, the base is equipped with a foot, a first connecting nail, a second connecting nail and a foot adjusting hand wheel, the foot is installed at the bottom of the base through the foot adjusting hand wheel, the base is installed at the bottom of the connecting bottom plate through the first connecting nail, the stand is installed on the connecting bottom plate through the second connecting nail, the number of the stand is two, and the two stands are installed in parallel on the connecting bottom plate.
[0014] Further, the lower clamp head bottom is equipped with a hook.
[0015] The weight disc is hung on the hook at the lower clamp head bottom through the weight hook, and the weight disc is equipped with a weight.
[0016] Further, the digital display scale device, the upper cross beam and the workbench left side are respectively equipped with a first locking nail, a second locking nail and a third locking nail, and the digital display scale device, the upper cross beam and the workbench are locked on the stand through the first locking nail, the second locking nail and the third locking nail respectively, and the stand bottom is installed with a decorative ring.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] The far and near distance dual-purpose Young's modulus measuring instrument is equipped with the digital display scale device and the movable reading telescope device, so that the measurement adjustment of far and near distances can be realized, is equipped with the light lever reflecting mirror and the reading telescope device combination, so that the return image of the digital display scale can be observed and recorded, and is equipped with the level and the foot adjusting hand wheel, so that the horizontal state of the instrument can be quickly adjusted. BRIEF DESCRIPTION OF DRAWINGS
[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0020] Figure 1 This is an overall schematic diagram of the dual-purpose Young's modulus measuring instrument for both long and short distances as described in this embodiment of the utility model;
[0021] Figure 2 This is a side view of the Young's modulus measuring instrument for both short and long distances as described in this embodiment of the invention.
[0022] Figure 3 This is a schematic diagram of the reading telescope of the dual-purpose Young's modulus measuring instrument for both short and long distances as described in an embodiment of this utility model.
[0023] Figure 4 This is a schematic diagram of the worktable of the dual-purpose Young's modulus measuring instrument for both long and short distances as described in this embodiment of the utility model;
[0024] Figure 5 This is a schematic diagram of the digital display scale device of the Young's modulus measuring instrument for both short and long distances as described in an embodiment of this utility model.
[0025] Figure 6 This is a schematic diagram of the lower clamp of the dual-purpose Young's modulus measuring instrument for both short and long distances as described in this embodiment of the present invention;
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Base; 2. Connecting base plate; 3. Column; 4. Workbench; 5. Upper crossbeam; 6. Digital display scale device; 7. Upper clamp; 8. Steel wire; 9. Lower clamp; 10. Weight hook; 11. Weight; 12. Weight pan; 13. Lower clamp contact platform; 14. Level; 15. Rear support rod; 16. Counterweight; 17. Front support rod; 18. Optical lever; 19. Plane reflector; 20. Decorative ring; 21. Reading telescope device; 22. First locking screw; 23. Second locking screw; 24. Third locking pin; 101, base; 102, first connecting pin; 103, second connecting pin; 104, base adjusting handwheel; 211, reading telescope base; 212, reading telescope column; 213, lifting connecting cylinder; 214, lifting connecting cylinder locking pin; 215, reading telescope; 216, telescope tilt adjusting pin; 217, telescope tilt plate; 218, telescope bracket; 219, eyepiece; 220, objective lens group; 601, digital display scale; 602, digital display scale power socket. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0031] This embodiment relates to a Young's modulus measuring instrument that can be used for both long and short distance measurements, enabling measurement and adjustment at both long and short distances.
[0032] Based on the above design concept, an exemplary structure of the dual-purpose Young's modulus measuring instrument for both short and long distances in this embodiment is as follows: Figures 1-6 As shown, it mainly includes a measuring frame and a reading telescope 21. The measuring frame includes a base 1, a connecting base plate 2, a column 3, a worktable 4, an upper crossbeam 5, and a digital display scale device 6. The connecting base plate 2 is installed on the base 1, the column 3 is installed on the connecting base plate 2, and the digital display scale device 6, the upper crossbeam 5, and the worktable 4 are fitted onto the column 3 from top to bottom.
[0033] The upper crossbeam 5 has an upper chuck 7 installed at its bottom. The worktable 4 has a level 14, a lower chuck 9, and a front support rod 17 installed at its top. The bottom of the lower chuck 9 passes through the worktable 4. A steel wire 8 connects the upper chuck 7 and the lower chuck 9. The top of the front support rod 17 is connected to a light lever 18. A plane reflector 19 is rotatably connected to the light lever 18. There is a counterweight 16 on the left side of the light lever 18. A rear support rod 15 is connected to the left side of the counterweight 16. The lower chuck 9 has a lower clamping contact platform 13, which is located above the worktable 4. The contact of the rear support rod 15 is connected to the lower clamping contact platform 13. A weight pan 12 is connected to the bottom of the lower chuck 9.
[0034] The separate structure of the reading telescope 21 and the digital display scale device 6 facilitates close-up observation of the scale image on the optical lever reflector 19, avoiding the difficulty in adjusting the optical lever caused by the integrated design of the traditional scale reading telescope and scale. Moving the digital display scale device upward and the reading microscope closer to the optical lever reflector facilitates the adjustment of the optical lever.
[0035] The reading telescope device 21 includes a reading telescope base 211, a reading telescope column 212, a lifting connecting cylinder 213, a lifting connecting cylinder locking pin 214, a reading telescope 215, a telescope elevation adjustment pin 216, a telescope tilt plate 217, a telescope bracket 218, an eyepiece 219 with a reticle, and an objective lens group 220. The reading telescope column 212 is mounted on the reading telescope base 211, the lifting connecting cylinder 213 is fitted onto the reading telescope column 212, the lifting connecting cylinder locking pin 214 is mounted on the lifting connecting cylinder 213, and the lifting connecting cylinder 213 is locked to the reading telescope column 212 by the lifting connecting cylinder locking pin 214. The telescope tilt plate 217 is mounted on the telescope bracket 218, and the telescope tilt adjustment pin 216 is located on the left side of the bottom of the telescope bracket 218. The eyepiece 219 with a reticle is mounted on the left side of the reading telescope 215, and the objective lens group 220 is mounted on the right side of the reading telescope 215.
[0036] The lifting connecting cylinder 213 with locking function and the telescope tilting plate 217 facilitate three-dimensional spatial adjustment of the reading telescope 215, allowing the operator to quickly align the reflected image of the digital display scale 601 while ensuring the stability of the observation posture. The independent power supply design with a digital display scale power socket 602 facilitates the brightness display of the scale scale, enabling clear data reading even at long distances. The optical system with an eyepiece 219 with a reticle and an objective lens group 220 facilitates the accurate acquisition of data using the successive difference method.
[0037] The digital scale device 6 includes a digital scale 601 and a digital scale power socket 602. The digital scale 601 faces the base 1, and the digital scale power socket 602 is located on top of the digital scale 601. The plane mirror 19 reflects the image of the digital scale 601 into the reading telescope 21. By adjusting the height and pitch of the reading telescope 215, the horizontal line of the reticle of the eyepiece 219 can be ensured to coincide with the horizontal line of the digital scale 601, thereby improving the accuracy of the measurement.
[0038] The base 1 is equipped with feet 101, a first connecting pin 102, a second connecting pin 103, and a foot adjustment handwheel 104. The feet 101 are mounted to the bottom of the base 1 via the foot adjustment handwheel 104. The base 1 is mounted to the bottom of the connecting base plate 2 via the first connecting pin 102. The columns 3 are mounted on the connecting base plate 2 via the second connecting pin 103. There are two columns 3, which are mounted parallel to each other on the connecting base plate 2. The combination of the foot adjustment handwheel 104 and the level 14 provides a leveling system that facilitates rapid horizontal calibration of the instrument, fundamentally eliminating measurement deviations caused by installation tilt. The parallel mounting structure of the two columns 3 facilitates the linear motion guidance of the digital display scale device 6, ensuring the stability of the optical path during measurement.
[0039] The lower clamp 9 has a hook at its bottom; the weight pan 12 has a weight hook 10, and the weight pan 12 is hung on the hook at the bottom of the lower clamp 9 through the weight hook 10. The weight pan 12 has weights 11.
[0040] The digital scale device 6, the upper crossbeam 5, and the worktable 4 are respectively equipped with a first locking screw 22, a second locking screw 23, and a third locking screw 24 on their left sides. The digital scale device 6, the upper crossbeam 5, and the worktable 4 are locked to the column 3 by the first locking screw 22, the second locking screw 23, and the third locking screw 24. A decorative ring 20 is installed at the bottom of the column 3. The segmented locking mechanism with the first locking screw 22, the second locking screw 23, and the third locking screw 24 facilitates the independent positioning of the digital scale 6, the upper crossbeam 5, and the worktable 4. When changing the measurement distance, there is no need to disassemble the whole unit, which greatly improves the efficiency of experimental preparation.
[0041] When using the Young's modulus measuring instrument for both short and long distances described in this embodiment, 1. Place the level 14 on the workbench 4 and adjust the handwheel of the base 101 of the instrument to make the instrument level.
[0042] 2. Install the weight pan 12 with the weight hook 10, and place a counterweight 11 on it to extend the steel wire 8. Slightly move the worktable 4 up and down to check if there is any jamming on the contact platform of the lever 18. This can be achieved by adjusting the set screw and the adjusting handwheel of the foot 101 at the back of the worktable 4 until the contact platform can move freely up and down.
[0043] 3. Connect the power cord of the digital display scale device 6 and move it to a position approximately 95 cm from the mirror surface.
[0044] 4. Install and adjust the optical lever plane mirror 19. Simultaneously, place the reading telescope 21 approximately 25 cm in front of the optical lever plane mirror 19. Observe the returned image of the moving digital display scale 601 through the reading telescope 21. Adjust the height and pitch of the reading telescope 21 so that the horizontal line of the reticle of the eyepiece 219 coincides with the horizontal line of the scale of the digital display scale 601. After adjustment, add or subtract weights 11 sequentially, and observe and record the changes in the value of the digital display scale 601 through the reticle.
[0045] Substitute the above data into the formula using the method of successive differences:
[0046]
[0047] In the formula, F is the tension on the steel wire 8, L is the length of the steel wire 8 between the two clamps, D is the vertical distance from the digital display scale 601 to the optical lever plane reflector 19, d is the diameter of the steel wire, Δx is the difference between the current measurement and the previous measurement scale value, the average value of multiple measurements, and b is the distance from the vertical plane of the support point of the two front support rods 17 of the optical lever to the support point of the rear support rod 15 of the optical lever.
[0048] 5. If a long distance is required, move the digital scale device 6 downwards while keeping other components unchanged. Slowly move the reading telescope device 21 backwards until the returned image of the digital scale 601 is observed. Adjust the height and pitch of the reading telescope device 21 until the horizontal line of the reticle of the eyepiece 219 coincides with the horizontal line of the scale of the digital scale 601. Add or subtract weights 11 sequentially, observe and record the numerical changes of the digital scale 601 through the reticle, and process the data using the method of successive differences before substituting it into the formula for calculation.
[0049] The dual-purpose Young's modulus measuring instrument with both long and short ranges, which adopts the above implementation scheme, effectively achieves the goal of flexibly adjusting the measurement distance according to the size of the laboratory space by installing a movable digital display scale device 6 on the column 3. This solves the problem of the large space occupied by traditional Young's modulus measuring instruments and is especially suitable for teaching scenarios with limited laboratory space.
[0050] 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, improvements, etc., 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 Young's modulus measuring instrument for both short and long distances, comprising a measuring frame and a reading telescope (21), characterized in that: The measuring frame includes a base (1), a connecting base plate (2), a column (3), a worktable (4), an upper crossbeam (5), and a digital display scale device (6). The connecting base plate (2) is installed on the base (1), the column (3) is installed on the connecting base plate (2), and the digital display scale device (6), the upper crossbeam (5), and the worktable (4) are mounted on the column (3) from top to bottom.
2. The Young's modulus measuring instrument for both short and long distances according to claim 1, characterized in that: The upper crossbeam (5) is equipped with an upper chuck (7) at its bottom. The workbench (4) is equipped with a level (14), a lower chuck (9), and a front support rod (17) at its top. The bottom of the lower chuck (9) passes through the workbench (4). A steel wire (8) connects the upper chuck (7) and the lower chuck (9). The front support rod (17) is connected to a light lever (18) at the top, and a plane mirror (19) is rotatably connected to the light lever (18). The left side of the light lever (18) is equipped with a counterweight (16), and the left side of the counterweight (16) is connected to a rear support rod (15). The lower clamp (9) is provided with a lower clamp contact platform (13), and the lower clamp contact platform (13) is located above the workbench (4). The rear support rod (15) contacts the lower clamp contact platform (13). The bottom of the lower clamp (9) is connected to a weight pan (12).
3. The Young's modulus measuring instrument for both short and long distances according to claim 1, characterized in that: The reading telescope device (21) includes a reading telescope base (211), a reading telescope column (212), a lifting connecting cylinder (213), a lifting connecting cylinder locking pin (214), a reading telescope (215), a telescope elevation adjustment pin (216), a telescope elevation plate (217), a telescope bracket (218), an eyepiece with a reticle (219), and an objective lens group (220). The reading telescope column (212) is mounted on the reading telescope base (211). The lifting connecting cylinder (213) is fitted onto the reading telescope column (212). The lifting connecting cylinder locking pin (214) is mounted on the lifting connecting cylinder (213). The lifting connecting cylinder (213) is locked onto the reading telescope column (212) by the lifting connecting cylinder locking pin (214). The telescope elevation plate (217) is mounted on the telescope bracket (218). The telescope bracket (218) has a telescope elevation adjustment pin (216) on the bottom left side. The eyepiece (219) with a reticle is mounted on the left side of the reading telescope (215). The objective lens group (220) is mounted on the right side of the reading telescope (215).
4. The Young's modulus measuring instrument for both short and long distances according to claim 1, characterized in that: The digital display ruler device (6) includes a digital display ruler (601) and a digital display ruler power socket (602). The digital display ruler (601) faces the base (1), and the digital display ruler power socket (602) is located on top of the digital display ruler (601).
5. The Young's modulus measuring instrument for both short and long distances according to claim 1, characterized in that: The base (1) is provided with a foot (101), a first connecting nail (102), a second connecting nail (103) and a foot adjustment handwheel (104). The foot (101) is installed on the bottom of the base (1) through the foot adjustment handwheel (104). The base (1) is installed on the bottom of the connecting base plate (2) through the first connecting nail (102). The column (3) is installed on the connecting base plate (2) through the second connecting nail (103). There are two columns (3), and the two columns (3) are installed parallel to each other on the connecting base plate (2).
6. The Young's modulus measuring instrument for both short and long distances according to claim 2, characterized in that: The lower clamp (9) is provided with a hook at its bottom; The weight pan (12) is provided with a weight hook (10), and the weight pan (12) is hung on the hook at the bottom of the lower clamp (9) through the weight hook (10). The weight pan (12) is provided with weights (11).
7. The Young's modulus measuring instrument for both short and long distances according to claim 1, characterized in that: The digital display scale device (6), the upper crossbeam (5), and the workbench (4) are respectively provided with a first locking screw (22), a second locking screw (23), and a third locking screw (24) on their left sides. The digital display scale device (6), the upper crossbeam (5), and the workbench (4) are respectively locked to the column (3) by the first locking screw (22), the second locking screw (23), and the third locking screw (24). A decorative ring (20) is installed at the bottom of the column (3).