Mechanical experiment display device

Abstract

The utility model discloses a mechanics experiment display device, which relates to the field of teaching equipment, solves the problem of poor display effect of the existing elastic mechanics display device, and comprises a device base, two support plates symmetrically arranged at the top of the device base, and a hanging rod arranged between the two support plates, two first tension springs distributed at equal intervals are hung on the surface of the hanging rod, second tension springs are hung at the bottoms of the first tension springs, a positioning frame is installed between the two second tension springs, and a containing plate is installed at the bottom of the positioning frame. The identification mechanism is used for identifying the tensile force of the first tension spring and the second tension spring, and the identification mechanism is installed on the top of the device base. Through the stirring mechanism, the placing plate receives the weight of a weight, the second tension spring and the first tension spring are pulled to extend through the positioning frame, and the tensile force data of the first tension spring and the second tension spring are calculated; therefore, the effect of stable and accurate experiment is achieved.

Description

Technical Field

[0001] The utility model relates to the field of teaching equipment, in particular to a mechanics experiment display device. Background Art

[0002] University Physics is a basic course in university science and engineering. Through the study of this course, students can become familiar with the structure, properties, interactions and basic laws of motion of natural matter, laying the necessary physical foundation for the study of subsequent professional foundations and professional courses and further acquisition of relevant knowledge.

[0003] Elasticity mechanics is a discipline that studies the mechanical laws and deformation characteristics of objects when they are deformed under the action of forces. During university physics experiments, it is necessary to add or subtract weights on the spring placement plate to calculate the elastic force of the spring. However, when using it, it is necessary to add weights while placing the plate, which makes the calculation more cumbersome and causes the spring to shake, resulting in a poor display effect. For this reason, technical personnel in this field provide a mechanical experiment display device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a mechanical experiment demonstration device, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical experiment demonstration device, comprising a device base and two support plates symmetrically installed on the top of the device base, and also comprising: a hanging rod arranged between the two support plates, two equidistantly distributed tension springs 1 are hung on the surface of the hanging rod, a tension spring 2 is hung at the bottom of the tension spring 1, and the tension spring 2 can be increased or decreased according to experimental needs, a positioning frame is installed between the two tension springs 2, and a placement plate is installed at the bottom of the positioning frame for placing weights; an identification mechanism is used to identify the tension of the tension spring 1 and the tension spring 2, and the identification mechanism is installed on the top of the device base; a spring adjusting mechanism is used to adjust the number of the tension spring 1, and the spring adjusting mechanism is installed on the outside of the hanging rod.

[0006] Preferably, the marking mechanism includes a scale fixedly mounted on the outer side of the support plate, one end of the scale away from the support plate is fixedly mounted on the top of the device base, both sides of the placement plate are fixedly connected with a sleeve frame, the sleeve frame is movably sleeved on the outer side of the scale, the bottom of the sleeve frame is fixedly connected with an indicator plate, according to the weight pulling the tension spring 1 and the tension spring 2, so that the placement plate drives the indicator plate on the sleeve frame to indicate the scale, the indicator plate is a triangular structure, the bottom of the placement plate is fixedly connected with a threaded barrel, the inner side of the threaded barrel is engaged with a threaded rod, and the top of the placement plate is opened There is a through hole for the threaded rod to be limited and inserted, and the threaded rod is fixedly connected to a turntable at one end close to the base of the device, which is convenient for height adjustment and disassembly of the threaded rod. The threaded rod can be installed on the top of the placement plate by rotating the turntable, and a weight is placed to make the placement plate stretch the tension spring 2 and the tension spring 1 through the positioning frame, thereby the sleeve frames on both sides of the placement plate move along the outside of the ruler, and the tension data of the tension spring 1 is calculated through the indication of the indicator plate on the scale on the ruler, which is convenient for elastic mechanics experiments and has the effect of stabilizing the experiment. In addition, the design of double scales can improve the accuracy of the experiment.

[0007] Preferably, the spring adjusting mechanism includes four positioning rings fixedly installed on the outside of the hanging rod at equal distances, the positioning ring having a surface close to the tension spring 1 fixedly connected to a spring, the spring having an end away from the positioning ring fixedly connected to a resisting ring, the resisting ring being in contact with an end of the tension spring 1 away from the tension spring 2, and being used to position the tension spring 1, and the resisting ring is used to resist the connection between the tension spring 1 and the hanging rod, and the hanging rod is formed into a hangable area for three tension springs 1 through six resisting rings, wherein a single tension spring 1 is installed at the middle position of the hanging rod to carry out mechanical experiments on the single tension spring 1, or two tension springs 1 are respectively installed on the four outermost resisting rings on the hanging rod, so as to facilitate mechanical experiments on different numbers of tension springs 1 and improve the convenience of the experiment.

[0008] Preferably, a top plate is fixedly connected between the two support plates to facilitate installation of the two support plates.

[0009] Preferably, a handle is fixedly mounted on the top of the top plate for easy carrying.

[0010] Preferably, three equally spaced positioning blocks are rotatably mounted on the top of the positioning frame, and a hanging bar for hanging the second tension spring is fixedly connected to the top of the positioning block, so as to facilitate the installation of the first tension spring or the second tension spring and the positioning frame.

[0011] Preferably, two symmetrically distributed sliding blocks are fixedly connected to the inner side of the retaining ring, and the outer side of the hanging rod is provided with a sliding groove for limiting the sliding of the sliding blocks, thereby improving the stability of the movement of the retaining ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses a stirring mechanism to rotate the turntable to install the threaded rod on the top of the placement plate, and places weights through the threaded rod, so that the weight of the weight received by the placement plate pulls the second tension spring and the first tension spring to extend through the positioning frame, thereby the sleeves on both sides of the placement plate move along the outside of the ruler, and the indication of the scale on the ruler by the indicator plate is used to calculate the tension data of the first tension spring, which has the effect of a stable experiment, and the design of double scales can improve the accuracy of the experiment, thereby achieving the effect of a stable and accurate experiment.

[0014] 2. The utility model uses a stretching mechanism to form a hangable area for three tension springs on a hanging rod through six retaining rings, wherein a single tension spring is installed at the middle position of the hanging rod to carry out a mechanical experiment on the single tension spring, or two tension springs are respectively installed on the four outermost retaining rings on the hanging rod, so as to facilitate mechanical experiments on different numbers of tension springs and improve the convenience of the experiment. In addition, the spring can improve the firmness of the installation of the tension spring and prevent the tension spring from being offset, which facilitates the positioning of the tension spring, thereby achieving the effect of improving the convenience of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the tension spring 1 and the hanging rod in the utility model;

[0017] Figure 3 This is a schematic diagram of the placement plate and the scale structure in the utility model;

[0018] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure of area A;

[0019] Figure 5 It is a schematic diagram of the structure of the spring adjusting mechanism in the utility model.

[0020] In the figure: 1. device base; 2. support plate; 3. marking mechanism; 301. scale; 302. sleeve frame; 303. indicator plate; 304. threaded cylinder; 305. turntable; 306. threaded plug rod; 4. spring adjustment mechanism; 401. positioning ring; 402. spring; 403. abutment ring; 5. hanging rod; 6. tension spring 1; 7. tension spring 2; 8. positioning frame; 9. placement plate; 10. top plate; 11. handle; 12. positioning block; 13. hanging strip; 14. slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1 and Figure 2 A mechanical experiment demonstration device shown in the figure includes a device base 1 and two support plates 2 symmetrically installed on the top of the device base 1, and also includes: a hanging rod 5 arranged between the two support plates 2, two tension springs 6 equidistantly distributed are hung on the surface of the hanging rod 5, and a tension spring 2 7 is hung at the bottom of the tension spring 1 6, and the tension spring 2 7 can be increased or decreased according to experimental needs. A positioning frame 8 is installed between the two tension springs 2 7, and a placement plate 9 is installed at the bottom of the positioning frame 8 for placing weights; an identification mechanism 3 is used to identify the tension of the tension spring 1 6 and the tension spring 2 7, and the identification mechanism 3 is installed on the top of the device base 1; a spring adjusting mechanism 4 is used to adjust the number of the tension spring 1 6, and the spring adjusting mechanism 4 is installed on the outside of the hanging rod 5.

[0024] See also Figure 2-Figure 4 The marking mechanism 3 shown in the figure includes a scale 301 fixedly mounted on the outer side of the support plate 2, and one end of the scale 301 away from the support plate 2 is fixedly mounted on the top of the device base 1. Both sides of the placement plate 9 are fixedly connected with a sleeve frame 302, and the sleeve frame 302 is movably sleeved on the outer side of the scale 301. The bottom of the sleeve frame 302 is fixedly connected with an indicator plate 303. According to the weight pulling the tension spring 1 6 and the tension spring 2 7, the placement plate 9 drives the indicator plate 303 on the sleeve frame 302 to indicate the scale 301, and the indicator plate 3 03 is a triangular structure, which is used to mark the scale on the ruler 301 accordingly. The bottom of the placement plate 9 is fixedly connected with a threaded barrel 304, and the inner thread of the threaded barrel 304 is engaged with a threaded rod 306. The top of the placement plate 9 is provided with a through hole for the threaded rod 306 to be inserted and inserted, so that the threaded rod 306 can be used to insert and position the weight. The end of the threaded rod 306 close to the device base 1 is fixedly connected with a turntable 305, which is convenient for height adjustment and disassembly of the threaded rod 306.

[0025] The user rotates the turntable 305 to install the threaded rod 306 on the top of the placement plate 9, which is convenient for inserting and installing the weights on the outside of the threaded rod 306. As the weights are placed, the placement plate 9 is pressed downward by the weight of the weights. The placement plate 9 stretches the tension spring 27 and the tension spring 16 through the positioning frame 8. At the same time, the sleeve frames 302 on both sides of the placement plate 9 move along the outside of the ruler 301. The indication of the scale on the ruler 301 by the indicator plate 303 is used to calculate the tension data of the tension spring 16 and the tension spring 27, which is convenient for elastic mechanics experiments and has the effect of stabilizing the experiment. In addition, the design of the double ruler 301 is used to synchronously calculate the tension value and improve the accuracy of the experiment.

[0026] See also Figure 2 and Figure 5 The spring adjustment mechanism 4 shown in the figure includes four positioning rings 401 equidistantly fixedly installed on the outside of the hanging rod 5, a spring 402 is fixedly connected to a side of the positioning ring 401 close to the tension spring 1 6, and a retaining ring 403 is fixedly connected to an end of the spring 402 away from the positioning ring 401, and the retaining ring 403 is in contact with an end of the tension spring 1 6 away from the tension spring 2 7, and is used to position the tension spring 1 6, and the retaining ring 403 is used to resist the connection between the tension spring 1 6 and the hanging rod 5;

[0027] By using six retaining rings 403, two of which are grouped into three groups, the hanging rod 5 forms a hangable area for three tension springs 6. Two symmetrical retaining rings 403 and springs 402 press against the outside of the tension spring 6 to position the tension spring 6. The user can install a single tension spring 6 on a group of retaining rings 403 in the middle of the hanging rod 5 to perform a mechanical experiment on the single tension spring 6, or install two tension springs 6 on the two outermost groups of retaining rings 403 on the hanging rod 5, respectively, thereby facilitating mechanical experiments on different numbers of tension springs 6 and improving the convenience of the experiment.

[0028] The working principle for smoothly conducting elastic mechanics experiments is as follows: first, the user installs the tension spring 16 on the hanging rod 5, and presses the outer side of the tension spring 16 with the butt ring 403 and the spring 402, and installs the tension spring 27 at one end of the tension spring 16. Subsequently, the user rotates the turntable 305 to install the threaded rod 306 on the top of the placement plate 9. Then, the user inserts and installs the weights on the outer side of the threaded rod 306. As multiple weights are placed, the placement plate 9 is pressed downward by the weight of the weights, and the placement plate 9 stretches the tension spring 27 and the tension spring 16 through the positioning frame 8. At the same time, the placement plate 9 drives the sleeve frame 302 to move along the outer side of the ruler 301, and the sleeve frame 302 drives the indicator plate 303 to move synchronously. According to the indication of the indicator plate 303 on the scale on the ruler 301, the tension data of the tension spring 16 and the tension spring 27 are calculated, and the design of the double ruler 301 is used to synchronously calculate the tension value, thereby improving the accuracy of the experiment, thereby achieving the effect of improving the accuracy and stability of the elastic mechanics experiment.

[0029] Embodiment 2

[0030] See also Figure 1 This embodiment further illustrates the first embodiment. In the figure, a top plate 10 is fixedly connected between the two support plates 2 to facilitate the installation of the two support plates 2. A handle 11 is fixedly installed on the top of the top plate 10 to facilitate carrying.

[0031] In this embodiment, the user can hold the handle 11 and carry the device through the top plate 10 and the two support plates 2, and the device base 1 can be conveniently placed on the teaching table, thereby improving the convenience of using the device.

[0032] Embodiment 3

[0033] See also Figure 1 and Figure 4 This embodiment further illustrates other embodiments. In the figure, three equally spaced positioning blocks 12 are rotatably installed on the top of the positioning frame 8. A hanging bar 13 for hanging the tension spring 2 7 is fixedly connected to the top of the positioning block 12, which is convenient for the installation of the tension spring 1 6 or the tension spring 2 7 and the positioning frame 8. Two symmetrically distributed sliders 14 are fixedly connected to the inner side of the retaining ring 403. A sliding groove for limiting the sliding of the slider 14 is opened on the outer side of the hanging rod 5, thereby improving the stability of the movement of the retaining ring 403.

[0034] In this embodiment: its purpose is that when the user adjusts the number of tension springs 1 6, the user can place tension spring 1 6 or tension spring 2 7 on the hanging bar 13 accordingly, so as to hang the positioning frame 8 under the tension spring 1 6 for easy installation and disassembly, and when the retaining ring 403 moves, it can drive the slider 14 to move along the slide groove on the hanging rod 5, thereby improving the stability of the movement of the retaining ring 403.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical experiment demonstration device, comprising a device base (1) and two support plates (2) symmetrically mounted on the top of the device base (1), characterized in that: Also includes: A hanging rod (5) is arranged between the two support plates (2), two tension springs (6) are hung on the surface of the hanging rod (5) and are distributed at equal distances, a tension spring (7) is hung at the bottom of the tension spring (6), a positioning frame (8) is installed between the two tension springs (7), and a placement plate (9) is installed at the bottom of the positioning frame (8); An identification mechanism (3) for identifying the tension of the tension spring 1 (6) and the tension spring 2 (7), wherein the identification mechanism (3) is installed on the top of the device base (1); The spring adjusting mechanism (4) is used to adjust the number of the tension spring (6), and the spring adjusting mechanism (4) is installed on the outside of the hanging rod (5).

2. A mechanical experiment demonstration device according to claim 1, characterized in that: The marking mechanism (3) comprises a scale (301) fixedly mounted on the outer side of the support plate (2); one end of the scale (301) away from the support plate (2) is fixedly mounted on the top of the device base (1); both sides of the placement plate (9) are fixedly connected with sleeve frames (302); the sleeve frames (302) are movably sleeved on the outer side of the scale (301); the bottom of the sleeve frame (302) is fixedly connected with an indication plate (303); the indication plate (303) is a triangular structure; the bottom of the placement plate (9) is fixedly connected with a threaded barrel (304); the inner side of the threaded barrel (304) is threadedly engaged with a threaded rod (306); the top of the placement plate (9) is provided with a through hole for the threaded rod (306) to be inserted in a limited position; and the end of the threaded rod (306) close to the device base (1) is fixedly connected with a rotating disk (305).

3. A mechanical experiment demonstration device according to claim 1, characterized in that: The spring adjustment mechanism (4) comprises four positioning rings (401) equidistantly fixedly mounted on the outside of the hanging rod (5); a spring (402) is fixedly connected to a side of the positioning ring (401) close to the tension spring one (6); an end of the spring (402) away from the positioning ring (401) is fixedly connected to a retaining ring (403); and the retaining ring (403) is in contact with an end of the tension spring one (6) away from the tension spring two (7).

4. A mechanical experiment demonstration device according to claim 1, characterized in that: A top plate (10) is fixedly connected between the two support plates (2).

5. A mechanical experiment demonstration device according to claim 4, characterized in that: A handle (11) is fixedly mounted on the top of the top plate (10).

6. A mechanical experiment demonstration device according to claim 1, characterized in that: Three equally spaced positioning blocks (12) are rotatably mounted on the top of the positioning frame (8), and a hanging bar (13) for hanging the second tension spring (7) is fixedly connected to the top of the positioning block (12).

7. A mechanical experiment demonstration device according to claim 3, characterized in that: Two symmetrically distributed sliding blocks (14) are fixedly connected to the inner side of the retaining ring (403), and a sliding groove for limiting the sliding of the sliding blocks (14) is provided on the outer side of the hanging rod (5).

Images