Tension detection device for physical experiment
By fixing the clamping and locking components of shell one and shell two, the problems of easy material detachment and unstable measurement in the tensile testing device are solved, and the material is firmly clamped and the tensile testing is stable.
Patent Information
- Application Number
- CN202520165722.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing tensile testing devices are easily affected by external factors when fixing materials, which can lead to accidental material detachment and unstable tensile force measurement.
The clamping and fixing components, consisting of a fixed shell one and a fixed shell two, combined with a locking component, are used to firmly clamp the material to be measured. The stability of the material during the tensile testing process is ensured through the cooperation of a tension mechanism and a tension sensor.
It effectively prevents material from falling off, improves the stability of material clamping and the stability of tensile testing, and ensures the accuracy of measurement results.
Smart Images
Figure CN223796357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of physical experimental equipment technology, specifically to a tensile force detection device for physical experiments. Background Technology
[0002] In physics experiments, it is often necessary to conduct multiple tests on a material to determine its properties. Measuring tensile force is one such test; it requires measuring the tensile force a material can withstand, or the amount of tensile force required to cause deformation. Tensile force testing devices are commonly used for this purpose. However, existing technologies have the following problems:
[0003] When performing tensile testing on fixed materials using existing tensile testing devices, the process is easily affected by external factors. The tensile testing devices do not have good fixing ability, which can easily cause the materials to fall off unexpectedly. Furthermore, in physical experiments, the tensile testing devices do not have good stability during operation, resulting in unstable tensile forces on the materials. Utility Model Content
[0004] This invention provides a tensile testing device for physical experiments to solve the problems existing in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A tensile testing device for physical experiments includes a base, a mounting plate fixedly connected to the top rear side of the base, a mounting groove on the front side of the mounting plate, a tensile mechanism on the top of the mounting plate, and the bottom of the outer wall of the tensile mechanism extending into the interior of the mounting groove. A first fixing shell is provided on the front side of the outer wall of the tensile mechanism. A tensile sensor is fixedly connected to the top of the base near the front side of the mounting plate. A second fixing shell is fixedly connected to the top of the tensile sensor via a pull rod. The first and second fixing shells are mirror images of each other on the same vertical line. A clamping and fixing component is mirror image of the left end of both the first and second fixing shells. The right side of the outer walls of the two clamping and fixing components respectively extends into the interior of the first and second fixing shells. A locking component is provided on the left end of both the first and second fixing shells near the front side of the clamping and fixing components. A display screen is provided on the top of the base near the left side of the tensile sensor. The tensile sensor is electrically connected to the terminal of the display screen via a wire. A battery box is fixedly connected to the bottom back of the mounting plate. A switch is provided on the right end of the mounting plate.
[0007] A further improvement of the present invention is that the clamping and fixing assembly includes a bidirectional lead screw, a knob, two clamping plates, and two moving blocks. The left end of the bidirectional lead screw is fixedly connected to the middle of the knob. The outer walls of the two moving blocks are respectively equidistantly arranged on the left and right sides of the bidirectional lead screw. The outer walls of the bidirectional lead screw pass through the left and right ends of the two moving blocks and are threadedly connected to each other. The bottoms of the two clamping plates are respectively fixedly connected to the tops of the two moving blocks. The front and rear ends of the two moving blocks are respectively fixedly connected to sliders. Several rubber toothed pads are equidistantly arranged on the opposite surfaces of the two clamping plates.
[0008] A further improvement of this utility model is that: the right ends of the outer walls of the two bidirectional lead screws respectively penetrate to the right ends of the first fixed shell and the second fixed shell and are rotatably connected between them; the front and rear sides of the inner walls of the first fixed shell and the second fixed shell are respectively provided with sliding grooves; the outer wall of the first slider is slidably connected to the inner wall of the sliding groove.
[0009] A further improvement of the present invention is that the locking assembly includes a connecting plate, a locking plate, two airbags and a second slider. The top of the connecting plate is provided with a moving groove, the rear end of the locking plate is provided with a vertically penetrating locking groove, the top of the second slider is fixedly connected to the bottom of the locking plate, the outer wall of the second slider is slidably connected to the inner wall of the moving groove, and the ends of the two airbags that are far apart are fixedly connected to the left and right sides of the locking groove.
[0010] A further improvement of this utility model is that: the right end of the connecting plate is fixedly connected to the front side of the left end of the fixed shell, the inner wall of the slot engages with the front side of the outer wall of the knob, and the opposite surfaces of the two airbags overlap with the surface of the knob.
[0011] A further improvement of this utility model's technical solution is that the tension mechanism includes a stepper motor, a lead screw, a bearing, a movable block, a fixed plate, two limit blocks, and two slide rods. The output shaft of the stepper motor is fixedly connected to the top of the lead screw. The bottom of the outer wall of the lead screw is rotatably connected to the inside of the bearing. The outer wall of the lead screw passes through the upper and lower ends of the movable block and is threadedly connected to it. The front end of the outer wall of the movable block passes through the interior of the mounting groove and is fixedly connected to the middle side of the back of the fixed plate. The front ends of the two limit blocks are respectively fixedly connected to the left and right sides of the back of the fixed plate. Each of the two limit blocks has a through hole in the middle. The middle of the limit block is sleeved with the outer wall of the slide rod through the through hole.
[0012] A further improvement of this utility model is that: the bottom of the stepper motor is fixedly connected to the top of the mounting plate, the bottom of the bearing is fixedly connected to the bottom of the mounting groove, the bottoms of the two slide rods are respectively fixedly connected to the left and right sides of the top of the base near the mounting plate, and the front end of the fixing plate is fixedly connected to the rear end of the fixing shell.
[0013] A further improvement of this utility model is that: semi-circular grooves are respectively opened on the left and right sides of the inner wall of the connecting hole, and ball bearings are provided on the inner walls of the two semi-circular grooves; a vertically penetrating groove is opened on the outer wall of the slide rod near the outer side of the ball bearings, and the outer wall of the ball bearings overlaps with the inner wall of the groove.
[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0015] 1. This utility model provides a tensile testing device for physical experiments. It employs a combination of a first fixed shell, a second fixed shell, a clamping and fixing component, and a locking component. The clamping and fixing components on the first and second fixed shells clamp and fix both ends of the material to be tested. After fixing, the locking component is operated to limit and lock the knob in the clamping and fixing component through the slot, preventing the material to be tested from accidentally falling off. This solves the problem in existing tensile testing devices where the tensile testing of fixed materials is easily affected by external factors and lacks good fixing ability, which can easily cause the material to fall off accidentally. This device effectively increases the stability of material clamping.
[0016] 2. This utility model provides a tensile testing device for physical experiments. It adopts the cooperation between the mounting plate, the mounting groove and the tensile mechanism. When the material to be measured is pulled upward by the tensile mechanism, the two limit blocks on both sides of the tensile mechanism roll along the surface of the fixed shell through the ball bearings, which improves the smoothness of the material being pulled and ensures the stability of the material under tensile force. This solves the problem that the tensile force measured by the tensile testing device is not very stable during operation in physical experiments, which leads to the instability of the tensile force borne by the material. It achieves the beneficial effect of ensuring the stability of the material under tensile force. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the tensile force testing device for physical experiments according to this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the clamping and fixing component of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the locking component of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the tension mechanism of this utility model;
[0021] Figure 5 This is a cross-sectional view of the three-dimensional structure of the limiting block of this utility model.
[0022] In the diagram: 1. Base; 2. Mounting plate; 3. Mounting groove; 4. Pulling mechanism; 41. Stepper motor; 42. Lead screw; 43. Bearing; 44. Moving block; 441. Fixed plate; 45. Limiting block; 450. Connecting hole; 4501. Semicircular groove; 451. Ball bearing; 46. Slide rod; 460. Groove; 5. Pulling sensor; 6. Fixed housing one; 7. Fixed housing two; 701. Slide groove; 8. Clamping and fixing assembly; 81. Bidirectional lead screw; 82. Knob; 83. Clamping plate; 84. Moving block; 85. Slider one; 86. Rubber toothed pad; 9. Locking assembly; 91. Connecting plate; 910. Moving groove; 92. Card plate; 920. Card slot; 93. Airbag; 94. Slider two; 10. Display screen; 11. Battery box; 12. Switch. Detailed Implementation
[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:
[0024] like Figure 1 As shown, this utility model provides a tensile testing device for physical experiments, including a base 1. A mounting plate 2 is fixedly connected to the rear top of the base 1. A mounting groove 3 is formed on the front of the mounting plate 2. A tensile mechanism 4 is provided on the top of the mounting plate 2, and the bottom of the outer wall of the tensile mechanism 4 extends into the interior of the mounting groove 3. A fixing shell 6 is provided on the front side of the outer wall of the tensile mechanism 4. A tensile sensor 5 is fixedly connected to the front side of the top of the base 1 near the mounting plate 2. A fixing shell 7 is fixedly connected to the top of the tensile sensor 5 via a pull rod. The fixing shell 6 and the fixing shell 7 are mirror images of each other. On the vertical line, clamping and fixing components 8 are mirrored on the left end of fixing shell 1 6 and fixing shell 2 7 respectively. The outer right side of the two clamping and fixing components 8 extends into the interior of fixing shell 1 6 and fixing shell 2 7 respectively. Locking components 9 are provided on the left end of fixing shell 1 6 and fixing shell 2 7 near the front side of clamping and fixing components 8. A display screen 10 is provided on the top of the base 1 near the left side of the tension sensor 5. The tension sensor 5 is electrically connected to the terminal of the display screen 10 through a wire. A battery box 11 is fixedly connected to the bottom back of the mounting plate 2. A switch 12 is provided on the right end of the mounting plate 2.
[0025] The system includes a tension mechanism 4, a tension sensor 5, a first fixed housing 6, a second fixed housing 7, a clamping and fixing component 8, a locking component 9, and a display screen 10. The material to be measured is clamped and fixed by the clamping and fixing component 8 on the first fixed housing 6 and the second fixed housing 7, and then locked by the locking component 9, which effectively increases the stability of the material clamping. Finally, the tension mechanism 4 and the tension sensor 5 work together to perform a tension test on the material.
[0026] like Figure 2As shown, this utility model provides a technical solution for a tensile testing device for physical experiments: the clamping and fixing assembly 8 includes a bidirectional lead screw 81, a knob 82, two clamping plates 83, and two moving blocks 84. The left end of the bidirectional lead screw 81 is fixedly connected to the middle of the knob 82. The outer walls of the two moving blocks 84 are equidistantly arranged on the left and right sides of the bidirectional lead screw 81. The outer walls of the bidirectional lead screw 81 pass through the left and right ends of the two moving blocks 84 and are threaded together. The bottoms of the two clamping plates 83 are fixedly connected to the tops of the two moving blocks 84. The front and rear ends of the two moving blocks 84 are fixedly connected to... The slider 85, by rotating the bidirectional lead screw 81, can move the clamping plates 83 on both sides closer together or expand. Several rubber toothed pads 86 are arranged equidistantly on the opposite surfaces of the two clamping plates 83. The right ends of the outer walls of the two bidirectional lead screws 81 pass through the right ends of the first fixed shell 6 and the second fixed shell 7 respectively and are rotatably connected to each other. The front and rear sides of the inner walls of the first fixed shell 6 and the second fixed shell 7 are respectively provided with sliding grooves 701. The outer wall of the slider 85 is slidably connected to the inner wall of the sliding groove 701. The slider 85 slides along the sliding groove 701, which has the effect of limiting the movement trajectory of the clamping plates 83.
[0027] like Figure 3 As shown, this utility model provides a technical solution for a tensile testing device for physical experiments: the locking component 9 includes a connecting plate 91, a locking plate 92, two airbags 93, and a second slider 94. The top of the connecting plate 91 has a moving groove 910, and the rear end of the locking plate 92 has a through-groove groove 920. The top of the second slider 94 is fixedly connected to the bottom of the locking plate 92, and the outer wall of the second slider 94 is slidably connected to the inner wall of the moving groove 910. The ends of the two airbags 93 that are far apart are both fixedly connected... The right end of the connecting plate 91 is fixedly connected to the front side of the left end of the fixed shell 7, and the inner wall of the slot 920 engages with the front side of the outer wall of the knob 82. The opposite surfaces of the two airbags 93 overlap with the surface of the knob 82. The locking plate 92 is slid along the moving groove 910 through the slider 94. The locking plate 92 is engaged with the outer surface of the knob 82 through the slot 920 to limit and position the knob 82, so as to avoid the phenomenon of material falling off due to external influence.
[0028] like Figure 4As shown, this utility model provides a technical solution for a tensile testing device for physical experiments: the tensile mechanism 4 includes a stepper motor 41, a lead screw 42, a bearing 43, a movable block 44, a fixed plate 441, two limit blocks 45, and two slide rods 46. The output shaft of the stepper motor 41 is fixedly connected to the top of the lead screw 42. The bottom of the outer wall of the lead screw 42 is rotatably connected to the inside of the bearing 43. The outer wall of the lead screw 42 passes through the upper and lower ends of the movable block 44 and is threadedly connected to it. The front end of the outer wall of the movable block 44 passes through the interior of the mounting groove 3 and is fixedly connected to the middle side of the back of the fixed plate 441. The front ends of the two limit blocks 45 are respectively fixedly connected to the left and right sides of the back of the fixed plate 441. Both limiting blocks 45 have through holes 450 in the middle. The middle of the limiting blocks 45 is sleeved with the outer wall of the slide rod 46 through the through holes 450. When the lead screw 42 rotates, the movable block 44 slides along the slide rod 46 through the limiting blocks 45 on both sides of the fixed plate 441, which limits the movement trajectory of the fixed shell 6 and makes the material horizontally pulled. The bottom of the stepper motor 41 is fixedly connected to the top of the mounting plate 2, the bottom of the bearing 43 is fixedly connected to the bottom of the mounting groove 3, and the bottoms of the two slide rods 46 are respectively fixedly connected to the left and right sides of the top of the base 1 near the mounting plate 2. The front end of the fixed plate 441 is fixedly connected to the rear end of the fixed shell 6.
[0029] like Figure 5 As shown, this utility model provides a technical solution for a tensile testing device for physical experiments: semi-circular grooves 4501 are respectively opened on the left and right sides of the inner wall of the connecting hole 450. Roller balls 451 are provided on the inner walls of the two semi-circular grooves 4501. A vertically penetrating groove 460 is opened on the outer wall of the slide rod 46 near the outer side of the roller balls 451. The outer wall of the roller balls 451 overlaps with the inner wall of the groove 460. When the limiting block 45 slides along the outer wall of the slide rod 46 through the connecting hole 450, it drives the roller balls 451 to roll along the groove 460, thereby improving the smoothness of the sliding of the limiting blocks 45 on both sides and ensuring the stability of the tensile force of the measured material.
[0030] The working principle of this tensile testing device for physical experiments will be explained in detail below.
[0031] like Figure 1-5As shown, when testing the tensile force of a material in a physical experiment, firstly, a battery is installed in the battery box 11 to provide power to the stepper motor 41, the tensile sensor 5, and the display screen 10. One end of the material is placed between two clamping plates 83 on the fixed housing 7. Then, by rotating the knob 82, the bidirectional lead screw 81 is rotated, causing the clamping plates 83 on both sides to move inwards via the moving block 84, thus clamping and fixing the lower end of the material. The rubber toothed pad 86 is tightly fitted against the outer wall of the material, improving the stability of the clamping. Then, the clamping and fixing assembly 8 on the fixed housing 6 is operated in the same manner to clamp and fix the upper end of the material. Then, the upper and lower clamping plates 92 are sequentially moved via the slider 94. The moving groove 910 is pushed backward, and the inner wall of the slot 920 engages with the front end of the outer wall of the knob 82, so that the airbag 93 on the inner wall of the slot 920 is squeezed and adhered to the outer surface of the knob 82, locking the knob 82 and further preventing the knob 82 from shaking due to external influences. Then, by pressing the button on the switch 12, the stepper motor 41 is started, and the output shaft of the stepper motor 41 drives the lead screw 42 to rotate, so that the moving block 44 drives the fixed shell 6 to move upward through the fixed plate 441. The limit block 45 rolls along the inner wall of the groove 460 through the ball 451, so that the fixed measuring material is pulled upward, and the tension force on the fixed shell 7 is measured by the tension sensor 5 and displayed on the display screen 10.
[0032] The specific types and structures of the stepper motor 41, tension sensor 5, and display screen 10 used are all existing products. The specific circuit connection structure and control relationship between the battery in the battery box and the stepper motor 41, tension sensor 5, and display screen 10 are also existing technologies, and will not be elaborated on here.
[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A tensile force testing device for physical experiments, comprising a base (1), characterized in that: A mounting plate (2) is fixedly connected to the top rear side of the base (1). A mounting groove (3) is provided on the front of the mounting plate (2). A tension mechanism (4) is provided on the top of the mounting plate (2), and the bottom of the outer wall of the tension mechanism (4) extends into the interior of the mounting groove (3). A fixing shell (6) is provided on the front side of the outer wall of the tension mechanism (4). A tension sensor (5) is fixedly connected to the top of the base (1) near the front side of the mounting plate (2). A fixing shell (7) is fixedly connected to the top of the tension sensor (5) via a pull rod. The fixing shell (6) and the fixing shell (7) are mirror images of each other on the same vertical line. The left end of the second shell (7) is mirrored with a clamping and fixing component (8). The outer right side of the two clamping and fixing components (8) extends into the interior of the first fixed shell (6) and the second fixed shell (7). The left end of the first fixed shell (6) and the second fixed shell (7) is provided with a locking component (9) near the front of the clamping and fixing component (8). The top of the base (1) is provided with a display screen (10) near the left side of the tension sensor (5). The tension sensor (5) is electrically connected to the terminal of the display screen (10) through a wire. The bottom back of the mounting plate (2) is fixedly connected with a battery box (11). The right end of the mounting plate (2) is provided with a switch (12).
2. The tensile force testing device for physical experiments according to claim 1, characterized in that: The clamping and fixing assembly (8) includes a bidirectional lead screw (81), a knob (82), two clamping plates (83) and two moving blocks (84). The left end of the bidirectional lead screw (81) is fixedly connected to the middle of the knob (82). The outer walls of the two moving blocks (84) are respectively equidistantly arranged on the left and right sides of the bidirectional lead screw (81). The outer walls of the bidirectional lead screw (81) pass through the left and right ends of the two moving blocks (84) and are threadedly connected to each other. The bottom of the two clamping plates (83) is respectively fixedly connected to the top of the two moving blocks (84). The front and rear ends of the two moving blocks (84) are respectively fixedly connected to sliders (85). The opposing surfaces of the two clamping plates (83) are each equidistantly arranged with several rubber toothed pads (86).
3. The tensile force testing device for physical experiments according to claim 2, characterized in that: The right ends of the outer walls of the two bidirectional lead screws (81) respectively penetrate to the right ends of the first fixed shell (6) and the second fixed shell (7) and are rotatably connected between them. The front and rear sides of the inner walls of the first fixed shell (6) and the second fixed shell (7) are respectively provided with sliding grooves (701). The outer wall of the first slider (85) is slidably connected to the inner wall of the sliding groove (701).
4. The tensile force testing device for physical experiments according to claim 1, characterized in that: The locking assembly (9) includes a connecting plate (91), a locking plate (92), two airbags (93), and a second slider (94). The top of the connecting plate (91) is provided with a moving groove (910), and the rear end of the locking plate (92) is provided with a vertically penetrating locking groove (920). The top of the second slider (94) is fixedly connected to the bottom of the locking plate (92), and the outer wall of the second slider (94) is slidably connected to the inner wall of the moving groove (910). The ends of the two airbags (93) that are far apart are fixedly connected to the left and right sides of the locking groove (920).
5. A tensile force testing device for physical experiments according to claim 4, characterized in that: The right end of the connecting plate (91) is fixedly connected to the front side of the left end of the fixed shell (7), the inner wall of the slot (920) engages with the front side of the outer wall of the knob (82), and the opposite surfaces of the two airbags (93) overlap with the surface of the knob (82).
6. The tensile force testing device for physical experiments according to claim 1, characterized in that: The tension mechanism (4) includes a stepper motor (41), a lead screw (42), a bearing (43), a movable block (44), a fixed plate (441), two limit blocks (45), and two slide rods (46). The output shaft of the stepper motor (41) is fixedly connected to the top of the lead screw (42). The bottom of the outer wall of the lead screw (42) is rotatably connected to the inside of the bearing (43). The outer wall of the lead screw (42) passes through the upper and lower ends of the movable block (44) and is threadedly connected to it. The front end of the outer wall of the movable block (44) passes through the inside of the mounting groove (3) and is fixedly connected to the middle side of the back of the fixed plate (441). The front ends of the two limit blocks (45) are respectively fixedly connected to the left and right sides of the back of the fixed plate (441). The middle of the two limit blocks (45) is provided with a through hole (450) that runs vertically through it. The middle of the limit block (45) is sleeved with the outer wall of the slide rod (46) through the through hole (450).
7. A tensile force testing device for physical experiments according to claim 6, characterized in that: The bottom of the stepper motor (41) is fixedly connected to the top of the mounting plate (2), the bottom of the bearing (43) is fixedly connected to the bottom of the mounting groove (3), the bottoms of the two slide rods (46) are respectively fixedly connected to the left and right sides of the top of the base (1) near the mounting plate (2), and the front end of the fixing plate (441) is fixedly connected to the rear end of the fixing shell (6).
8. A tensile force testing device for physical experiments according to claim 6, characterized in that: The inner wall of the connecting hole (450) is provided with semi-circular grooves (4501) on the left and right sides respectively. The inner walls of the two semi-circular grooves (4501) are provided with balls (451). The outer wall of the slide rod (46) is provided with a groove (460) that runs vertically through the outer side of the balls (451). The outer wall of the balls (451) overlaps with the inner wall of the groove (460).