Inertia scale device for college physics experiment

Abstract

The utility model discloses an inertia scale device for college physics experiments, and particularly relates to the technical field of teaching aids, which comprises a base, a first support rod arranged at the top of the base, a fixed platform arranged on the first support rod, a suspender arranged at the top of the first support rod, a pull wire arranged at the bottom of the suspender, and a second support rod arranged at the bottom of the pull wire. An object to be measured is arranged at the bottom of the pull wire, two steel bars are arranged on one side of the fixed platform, a weighing platform is arranged between the two steel bars, a trigger rod is arranged on one side of the weighing platform, and a placement mechanism is arranged on the other side of the weighing platform. According to the utility model, through the arrangement of the placing mechanism, the position of the weight is limited by adjusting the position of the positioning plate and limiting the position of the positioning plate through the cooperation of the positioning block, the connecting plate and the push-pull plate instead of using the cooperation of a screw and a nut when the position of the weight is limited after the weight is placed; through the limiting mode, the valve is effectively prevented from shaking after being placed.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, and more specifically, to an inertial scale device for university physics experiments. Background Technology

[0002] Physics is the fundamental natural science that studies matter, energy, spacetime and their interactions. In universities, teachers sometimes use teaching aids when guiding students in their studies. Teaching aids are a general term for various instruments used by teachers to help students understand the teaching content intuitively and vividly. There are many types of teaching aids, among which the inertial scale is one. The inertial scale is a mass measuring device designed based on the inertial characteristics of an object, and it measures the inertial mass of an object through the vibration method.

[0003] Most existing inertial scales limit valves by placing weights on a screw and then tightening a nut. While this method is simple, the nut is prone to loosening due to the scale's wobbling during use. This loosening can cause the weights to fall off and also affect the final detection structure due to irregular valve movement. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an inertial scale device for university physics experiments. By setting the placement mechanism, the loosening of the weights after placement is effectively avoided, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inertial scale device for university physics experiments, comprising a base, a first support rod at the top of the base, a fixed platform on the first support rod, a hanging rod at the top of the first support rod, a traction line at the bottom of the hanging rod, an object to be measured at the bottom of the traction line, two steel bars on one side of the fixed platform, a weighing platform between the two steel bars, a trigger rod on one side of the weighing platform, and a placement mechanism on the other side of the weighing platform.

[0006] In a preferred embodiment, the placement mechanism includes a placement plate, inside which a guide plate is provided, and one side of the guide plate is connected to the weighing platform.

[0007] In a preferred embodiment, the top of the guide plate is provided with a plurality of positioning grooves, a baffle is provided on one side of the guide plate, and a positioning plate is provided on one side of the baffle.

[0008] In a preferred embodiment, a protective ring is provided on one side of the positioning plate, a weight is provided on one side of the protective ring, and a through hole is provided inside the positioning plate, with the inner wall of the through hole in contact with the outer wall of the guide plate.

[0009] In a preferred embodiment, a groove is provided at the top of the inner wall of the through hole, and anti-slip pads are provided on both sides of the inner wall of the groove. A positioning block is provided between the two anti-slip pads, and a connecting plate is provided at the top of the positioning block. The top of the connecting plate passes through the positioning plate and extends to the outside of the positioning plate. A push-pull plate is provided at the end of the connecting plate located outside the positioning plate.

[0010] In a preferred embodiment, a light-blocking plate is provided at one end of the trigger rod, a second support rod is provided on one side of the light-blocking plate, and a base plate is provided at the bottom of the second support rod.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] By setting up a placement mechanism, the position of the weights is no longer restricted by the screw and nut after placement. Instead, the position of the positioning plate is restricted by the positioning block, connecting plate, and push-pull plate. This restriction method not only effectively prevents the valve from shaking after placement, affecting the final detection structure of the device, but also prevents the weights from falling off during use. Therefore, the reliability of the device is significantly improved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the connection between the weighing platform and the placement mechanism of this utility model.

[0015] Figure 3 This is a three-dimensional schematic diagram of the connection between the weighing platform and the placement mechanism of this utility model.

[0016] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] The attached diagram is labeled as follows: 1. Base; 2. First support rod; 3. Fixed platform; 4. Hanging rod; 5. Traction line; 6. Object to be measured; 7. Steel bar; 8. Weighing platform; 9. Trigger rod; 10. Placement plate; 11. Guide plate; 12. Baffle; 13. Positioning plate; 14. Protective ring; 15. Weight; 16. Anti-slip pad; 17. Positioning block; 18. Connecting plate; 19. Push-pull plate; 20. Light blocking plate; 21. Second support rod; 22. Base plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figure 1-4 The inertial balance device for university physics experiments shown includes a base 1, a first support rod 2 on the top of the base 1, and a fixed platform 3 on the first support rod 2. A suspension rod 4 is provided on the top of the first support rod 2, and a traction line 5 is provided at the bottom of the suspension rod 4. The object to be measured 6 is provided at the bottom of the traction line 5. The suspension rod 4 and the traction line 5 provide the position for placing the object to be measured 6. Two steel bars 7 are provided on one side of the fixed platform 3, and a weighing platform 8 is provided between the two steel bars 7. A trigger rod 9 is provided on one side of the weighing platform 8, and a placement mechanism is provided on the other side of the weighing platform 8.

[0020] As attached Figure 2 , 3 As shown in Figure 4, the placement mechanism includes a placement plate 10, inside which is a guide plate 11. One side of the guide plate 11 is connected to the weighing platform 8. Several positioning grooves are provided on the top of the guide plate 11. A baffle 12 is provided on one side of the guide plate 11, and a positioning plate 13 is provided on one side of the baffle 12. A protective ring 14 is provided on one side of the positioning plate 13, and a weight 15 is provided on one side of the protective ring 14. A through hole is provided inside the positioning plate 13, and the inner wall of the through hole is in contact with the outer wall of the guide plate 11. A groove is provided on the top of the inner wall of the through hole, and anti-slip pads 16 are provided on both sides of the inner wall of the groove. A positioning block 17 is provided between two anti-slip pads 16. A connecting plate 18 is provided on the top of the positioning block 17. The top of the connecting plate 18 passes through the positioning plate 13 and extends to the outside of the positioning plate 13. A push-pull plate 19 is provided at the end of the connecting plate 18 located outside the positioning plate 13. The weight 15 is positioned by the addition of the placement mechanism.

[0021] As attached Figure 1 As shown, a light-blocking plate 20 is provided at one end of the trigger rod 9, a second support rod 21 is provided on one side of the light-blocking plate 20, and a base plate 22 is provided at the bottom of the second support rod 21. The light-blocking plate 20 is installed in the corresponding position by adding the base plate 22 and the second support rod 21.

[0022] The working principle of this utility model is as follows: When adding weight 15 during the testing process using this device, first place weight 15 on the top of guide plate 11. After weight 15 is placed, the user moves push-pull plate 19 upward, forcing push-pull plate 19 to drive positioning block 17 out of one of the positioning slots opened on the top of guide plate 11 through connecting plate 18. Then, push positioning plate 13 to push positioning plate 13 to the side of weight 15. After positioning plate 13 contacts weight 15 through protective ring 14, the user presses down push-pull plate 19 to send positioning block 17 back into the corresponding positioning slot opened on the top of guide plate 11. At this time, the placement of weight 15 is completed, and the device can then be used.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0024] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0025] Finally: 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. An inertial balance device for university physics experiments, comprising a base (1), characterized in that: The base (1) is provided with a first support rod (2) at the top, a fixed platform (3) is provided on the first support rod (2), a hanging rod (4) is provided at the top of the first support rod (2), a traction line (5) is provided at the bottom of the hanging rod (4), and the object to be measured (6) is provided at the bottom of the traction line (5). Two steel bars (7) are provided on one side of the fixed platform (3), a weighing platform (8) is provided between the two steel bars (7), a trigger rod (9) is provided on one side of the weighing platform (8), and a placement mechanism is provided on the other side of the weighing platform (8).

2. The inertial balance device for university physics experiments according to claim 1, characterized in that: The placement mechanism includes a placement plate (10), and a guide plate (11) is provided inside the placement plate (10). One side of the guide plate (11) is connected to the weighing platform (8).

3. The inertial balance device for university physics experiments according to claim 2, characterized in that: The top of the guide plate (11) is provided with several positioning grooves, a baffle (12) is provided on one side of the guide plate (11), and a positioning plate (13) is provided on one side of the baffle (12).

4. The inertial balance device for university physics experiments according to claim 3, characterized in that: A protective ring (14) is provided on one side of the positioning plate (13), and a weight (15) is provided on one side of the protective ring (14). A through hole is provided inside the positioning plate (13), and the inner wall of the through hole is in contact with the outer wall of the guide plate (11).

5. The inertial balance device for university physics experiments according to claim 4, characterized in that: A groove is provided on the top of the inner wall of the through hole. Anti-slip pads (16) are provided on both sides of the inner wall of the groove. A positioning block (17) is provided between the two anti-slip pads (16). A connecting plate (18) is provided on the top of the positioning block (17). The top of the connecting plate (18) passes through the positioning plate (13) and extends to the outside of the positioning plate (13). A push-pull plate (19) is provided at the end of the connecting plate (18) located outside the positioning plate (13).

6. The inertial balance device for university physics experiments according to claim 1, characterized in that: A light-blocking plate (20) is provided at one end of the trigger rod (9), a second support rod (21) is provided on one side of the light-blocking plate (20), and a base plate (22) is provided at the bottom of the second support rod (21).

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