Primary school science buoyancy measurement experiment device

Abstract

The utility model discloses a primary school science buoyancy measurement experiment device which comprises a mounting base, a collecting groove is formed in the surface of the mounting base, a sleeve socket is fixed to the bottom of the collecting groove, a container is arranged above the collecting groove, a supporting column is installed at the bottom of the container and located in the sleeve socket, and the sleeve socket is fixed to the bottom of the collecting groove. And a guide rod is mounted in the container. According to the primary school science buoyancy measurement experiment device, a crank is rocked to drive a winding wheel to rotate in one direction through a mounting shaft, so that a traction rope can be conveniently controlled to be released, the traction rope can drive a spring dynamometer to rapidly sink and release, and tedious release operation is avoided; meanwhile, the spring dynamometer drives the hook weight to stably descend through the cooperation of the guide plate and the guide rod, large-amplitude left-right shaking is avoided, the influence on the experiment result is prevented, the supporting column at the bottom of the container is inserted into the sleeve socket, the container can be prevented from being overturned, and the influence on the experiment caused by liquid pouring is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of buoyancy experiments, and specifically relates to a buoyancy measurement experiment device for primary school science. Background Technique

[0002] Buoyancy refers to the pressure difference between the upper and lower surfaces of an object in a fluid (including liquids and gases), that is, the upward force exerted on an object immersed in a liquid or gas. Buoyancy is an important knowledge in the physics teaching subject. During the explanation of buoyancy, teachers often use experimental devices to cooperate with the explanation to achieve better teaching effects.

[0003] During the teaching process, students will be allowed to participate in the operation to increase the teaching interest. However, due to the unfamiliar operation of students, it is easy to knock over the measuring cup and cause the liquid to spill, affecting the progress of the experiment. And the spring dynamometer of the existing buoyancy measurement experiment device is often fixed on the support rod through a bracket. When moving the spring dynamometer, it is necessary to first loosen the bracket, then move it, and finally tighten it. The process requires two hands to operate and is relatively cumbersome.

[0004] In view of the above problems, it is urgent to design a buoyancy measurement experiment device for primary school science. Content of the Utility Model

[0005] The purpose of the utility model is to provide a buoyancy measurement experiment device for primary school science to solve at least one of the technical problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A buoyancy measurement experiment device for primary school science, comprising: a mounting base, a collection groove is opened on the surface of the mounting base, a sleeve socket is fixed at the bottom of the collection groove, a container is arranged above the collection groove, a support column is installed at the bottom of the container, the support column is located in the sleeve socket, a guiding rod is installed in the container, a vertical plate is also fixed on the surface of the mounting base, a mounting plate is fixed on the surface of the vertical plate, a winding wheel is arranged outside the mounting plate, a mounting shaft is fixed on the winding wheel, a locking groove is equiangularly opened on the surface of one end of the mounting shaft located in the mounting plate, a crank is installed at the end of the mounting shaft away from the locking groove, a bolt is installed on the mounting plate, one end of the bolt is located in the locking groove, a traction rope is wound on the winding wheel, one end of the traction rope away from the winding wheel is provided with a spring dynamometer, guiding plates are fixed on both side surfaces of the spring dynamometer, and a hook weight is arranged below the spring dynamometer.

[0007] Preferably, a baffle is fixed on the lower surface of the mounting base, a collection hole is opened at the center position of the collection groove, a collection dish is arranged below the collection hole, and the collection dish is installed below the mounting base through the baffle.

[0008] Preferably, an installation sleeve is fixed to the bottom of the container, and the guiding rod is threadedly installed in the installation sleeve.

[0009] Preferably, one end of the bolt located in the locking groove is of an inclined structure. A support rod is fixed to the surface of the bolt. A guiding groove is formed in the mounting plate. The support rod is located in the guiding groove, and a return spring is installed on the surface of the support rod.

[0010] Preferably, a cross bar is fixed to the surface of the vertical plate. A fixed pulley is installed at one end of the cross bar and the vertical plate. The towing rope is wound around the surface of the fixed pulley.

[0011] Preferably, a through-type sliding connection is provided between the guiding plate and the guiding rod.

[0012] A buoyancy measurement experimental device for primary school science of the present utility model has the following beneficial effects: Shaking the crank can drive the reel to rotate unidirectionally through the mounting shaft, thereby facilitating the control of the release of the towing rope. The towing rope can drive the spring dynamometer to quickly sink and release, avoiding the need for cumbersome release operations. At the same time, the spring dynamometer drives the hook weight to stably descend through the cooperation between the guiding plate and the guiding rod, avoiding large-amplitude left and right shaking and preventing the influence on the experimental results. At the same time, the support column at the bottom of the container is inserted into the sleeve socket, which can prevent the container from being overturned and avoid the liquid spilling and affecting the progress of the experiment. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a view of the overall structure of the present utility model;

[0015] Figure 2 It is a view of the installation structure of the reel of the present utility model from above;

[0016] Figure 3 For the present utility model Figure 1 The enlarged sectional view at A in;

[0017] Figure 4 It is a view of the distribution structure of the sleeve socket of the present utility model from above.

[0018]

Symbol Explanation of Main Components

[0019] 1. Mounting base; 2. Collection trough; 3. Sleeve socket; 4. Baffle; 5. Collection dish; 6. Container; 7. Support column; 8. Guide rod; 9. Vertical plate; 10. Mounting plate; 11. Reel; 12. Mounting shaft; 13. Crank; 14. Locking groove; 15. Pin; 16. Support rod; 17. Guide groove; 18. Return spring; 19. Traction rope; 20. Cross bar; 21. Fixed pulley; 22. Spring dynamometer; 23. Guide plate; 24. Hook weight. Detailed implementation mode

[0020] The following further elaborates on a primary school science buoyancy measurement experimental device of the present invention in conjunction with the accompanying drawings and embodiments of the present invention.

[0021] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe the present invention in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that the terms used herein are only for describing specific implementation modes and are not intended to limit the exemplary implementation modes according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] It should be noted that the terms "first", "second", etc. in the description, claims, and above-mentioned drawings of this application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the implementation modes of this application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0024] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made accordingly.

[0025] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a primary school science buoyancy measurement experiment device, comprising: a mounting base 1, a collecting groove 2 is formed on the surface of the mounting base 1, a sleeve socket 3 is fixed to the bottom of the collecting groove 2, a container 6 is disposed above the collecting groove 2, a support column 7 is installed at the bottom of the container 6, the support column 7 is located within the sleeve socket 3, a guiding rod 8 is installed within the container 6, a vertical plate 9 is further fixed to the surface of the mounting base 1, a mounting plate 10 is fixed to the surface of the vertical plate 9, a winding wheel 11 is disposed outside the mounting plate 10, a mounting shaft 12 is fixed to the winding wheel 11, locking grooves 14 are equiangularly formed on the surface of one end of the mounting shaft 12 located within the mounting plate 10, a crank 13 is installed at one end of the mounting shaft 12 away from the locking grooves 14, a latch 15 is installed on the mounting plate 10, one end of the latch 15 is located within the locking grooves 14, a traction rope 19 is wound around the winding wheel 11, one end of the traction rope 19 away from the winding wheel 11 is provided with a spring dynamometer 22, guiding plates 23 are fixed to both side surfaces of the spring dynamometer 22, and a hook weight 24 is disposed below the spring dynamometer 22.

[0026] In this example, a baffle 4 is fixed to the lower surface of the mounting base 1, a collecting hole is formed at the central position of the collecting groove 2, a collecting dish 5 is disposed below the collecting hole, and the collecting dish 5 is installed below the mounting base 1 through the baffle 4, which facilitates the pulling and installation of the collecting dish 5 below the mounting base 1 through the baffle 4, thereby facilitating the installation or disassembly of the collecting dish 5.

[0027] In this example, a mounting sleeve is fixed to the bottom of the container 6, and the guiding rod 8 is threadedly installed within the mounting sleeve, which facilitates the installation or disassembly of the guiding rod 8 within the container 6 through the mounting sleeve.

[0028] One end of the bolt 15 in this example located in the locking groove 14 is of an inclined structure. A support rod 16 is fixed on the surface of the bolt 15. A guiding groove 17 is formed in the mounting plate 10. The support rod 16 is located in the guiding groove 17. A return spring 18 is mounted on the surface of the support rod 16. The return spring 18 can push the support rod 16 to slide in the guiding groove 17, and the support rod 16 can then push the bolt 15 to stably press against the locking groove 14. The cooperation between the bolt 15 with the inclined structure and the locking groove 14 can limit the rotation direction of the mounting shaft 12.

[0029] In this example, a cross bar 20 is fixed on the surface of the vertical plate 9. A fixed pulley 21 is mounted at one end of the cross bar 20 and the vertical plate 9. The traction rope 19 is wound around the surface of the fixed pulley 21, which is beneficial to the smooth release of the traction rope 19 on the fixed pulley 21 and avoids jamming.

[0030] In this example, the guiding plate 23 and the guiding rod 8 are in a through-type sliding connection, which facilitates the up and down sliding of the guiding plate 23 on the guiding rod 8, is beneficial to the stable up and down displacement of the spring dynamometer 22, and avoids the situation of left and right shaking.

[0031] Working principle: As shown in Figures 1 - 4 , first fill the container 6 with water, then insert the support column 7 at the bottom of the container 6 into the sleeve socket 3 so that the container 6 is stably placed in the collection groove 2 to avoid tipping over. Then insert the edge of the collection dish 5 between the two baffles 4. At this time, the installation of the collection dish 5 is completed. During use, hang the spring dynamometer 22 at the end of the traction rope 19, and then hang the hook weight 24 on the spring dynamometer 22. Rotate the crank 13 to drive the winding wheel 11 to rotate on the mounting plate 10 through the mounting shaft 12. As shown in Figure 3 , the mounting shaft 12 can only rotate counterclockwise. When the mounting shaft 12 rotates counterclockwise, it will push the bolt 15 out of the locking groove 14 along the inclined structure of the bolt 15 through the locking groove 14. When the mounting shaft 12 rotates clockwise, the return spring 18 will push the support rod 16 to drive the bolt 15 to stably press against the locking groove 14 to prevent the mounting shaft 12 from rotating clockwise;

[0032] When the winding wheel 11 rotates, the winding wheel 11 releases the traction rope 19. Due to the weight of the hook 24, when the traction rope 19 is released, the fixed pulley 21 assists in releasing the line, and the spring dynamometer 22 together with the hook 24 slides downward through the cooperation between the guide plate 23 and the guide rod 8, so that the spring dynamometer 22 together with the hook 24 can be lowered and immersed in the water of the container 6. There is no need to measure the buoyancy by carrying the spring dynamometer 22, so as to avoid inaccurate measurement results caused by arm shaking during the carrying process. The container 6 can store the water required for the experiment, so that the hook 24 can be immersed in the water in the container 6, and the overflowing water will fall into the collecting tank 2, and drip through the collecting hole in the middle of the collecting tank 2 to the collecting dish 5 for collection, so as to facilitate the collection and reuse of the water.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A primary school science buoyancy measurement experimental device, characterized in that: include: A mounting seat (1), wherein a collecting groove (2) is provided on the surface of the mounting seat (1), a sleeve socket (3) is fixed at the bottom of the collecting groove (2), a container (6) is arranged above the collecting groove (2), a support column (7) is installed at the bottom of the container (6), the support column (7) is located in the sleeve socket (3), a guide rod (8) is installed in the container (6), a vertical plate (9) is also fixed on the surface of the mounting seat (1), a mounting plate (10) is fixed on the surface of the vertical plate (9), a winding wheel (11) is arranged on the outer side of the winding wheel (11), a mounting shaft (12) is fixed on the winding wheel (11), and the mounting seat (10) is provided with a plurality of guide rods (8) arranged on the outer side of the mounting plate (10). The end of the shaft (12) located in the mounting plate (10) has a locking groove (14) formed on its surface at an equal angle, the end of the mounting shaft (12) away from the locking groove (14) is provided with a crank (13), a latch (15) is installed on the mounting plate (10), one end of the latch (15) is located in the locking groove (14), a traction rope (19) is wound around the winding wheel (11), a spring dynamometer (22) is provided at one end of the traction rope (19) away from the winding wheel (11), guide plates (23) are fixed to both side surfaces of the spring dynamometer (22), and a hook weight (24) is provided below the spring dynamometer (22).

2. A primary school science buoyancy measurement experimental device according to claim 1, characterized in that: A baffle (4) is fixed to the lower surface of the mounting seat (1), a collecting hole is provided at the center of the collecting tank (2), a collecting dish (5) is provided below the collecting hole, and the collecting dish (5) is mounted below the mounting seat (1) through the baffle (4).

3. The elementary school science buoyancy measurement experimental device according to claim 1, characterized in that: A mounting sleeve is fixed to the bottom of the container (6), and the guide rod (8) is threadedly mounted in the mounting sleeve.

4. The elementary school science buoyancy measurement experimental device according to claim 1, characterized in that: One end of the latch pin (15) located in the locking groove (14) is an inclined structure, a support rod (16) is fixed to the surface of the latch pin (15), a guide groove (17) is provided in the mounting plate (10), the support rod (16) is located in the guide groove (17), and a return spring (18) is installed on the surface of the support rod (16).

5. The elementary school science buoyancy measurement experimental device according to claim 1, characterized in that: A cross bar (20) is fixed on the surface of the vertical plate (9), a fixed pulley (21) is installed at one end of the cross bar (20) and the vertical plate (9), and the traction rope (19) is wound around the surface of the fixed pulley (21).

6. The elementary school science buoyancy measurement experimental device according to claim 1, characterized in that: The guide plate (23) and the guide rod (8) are in through-type sliding connection.

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