Fixed paper tape type track dotting trolley device for mechanics experiment

Abstract

The utility model discloses a fixed paper tape type track dotting trolley device for a mechanics experiment, which comprises a placing table, a track is arranged at the top of the placing table, the starting end part of the track is arranged on the placing table through a supporting seat, and an adjusting piece for adjusting the inclination of the track is arranged between the track and the supporting seat. A moving trolley capable of sliding along the track is arranged on the track, a dotting device used for dotting is arranged at the bottom of the moving trolley, high-precision measurement can be achieved, the position of the trolley at each moment can be accurately recorded in a paper tape dotting mode, and then the speed, the acceleration and other physical quantities of the trolley can be accurately calculated. The data measurement precision of a mechanical experiment is improved; the device can conveniently complete various mechanics experiments, meets diversified experiment requirements in physics teaching, reduces the replacement frequency of experiment equipment, and improves the teaching and experiment efficiency. The operation is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of physics experiment teaching technology, specifically relating to a fixed paper tape track dotting trolley device for mechanics experiments. Background Technology

[0002] In current physics experiment teaching, mechanics experiments typically require the use of various instruments. Common experimental setups include:

[0003] Air cushion guide rail: This type of device reduces the friction between the slider and the guide rail by spraying gas onto the guide rail. However, this type of device has a complex structure, high cost, and requires external conditions such as an air source.

[0004] Simple cart and track device: This device is usually used to qualitatively demonstrate some mechanical phenomena, but in quantitative research, the lack of precise measurement means, such as precise methods to record the cart's trajectory and time, leads to inaccurate experimental results.

[0005] Therefore, this utility model designs a fixed paper tape track dotting trolley device for mechanical experiments. Utility Model Content

[0006] The purpose of this invention is to provide a fixed paper tape track marking trolley device for mechanical experiments, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fixed paper tape track marking carriage device for mechanical experiments, comprising a placement platform, a track on the top of the placement platform, the starting end of the track being mounted on the placement platform via a support base, and an adjusting component for adjusting the track inclination being provided between the track and the support base, a movable carriage that can slide along the track being mounted on the track, a marking device for marking being provided at the bottom of the movable carriage, a thermal paper tape corresponding to the movement trajectory of the marking device being mounted on the track, a carriage catcher for preventing the movable carriage from detaching being provided at the end of the track, a traction component for pulling the movable carriage to move being provided on the outer edge of the track, a locking component for limiting the movable carriage to stop at the starting end of the track being provided on the track, and a pulse high-voltage power supply for activating the marking device being provided on the placement platform.

[0008] Preferably, the traction assembly includes a fixed pulley mounted on the edge of the track, a traction rope passing through the fixed pulley, and a traction block suspended by the traction rope, the other end of which is connected to the moving trolley.

[0009] Preferably, the locking assembly includes a release cylinder fixedly installed at the starting end of the track, and the moving trolley is provided with a hook that cooperates with the release cylinder.

[0010] Preferably, the adjusting member has a pair of lifting slides formed on the support base, and the starting end of the track can be adjusted up and down along the lifting slides by means of a shaft, and both ends of the shaft have adjusting nuts for locking and positioning.

[0011] Preferably, the track is provided with a marking ruler on its side, and the bottom of the trolley is provided with rollers that cooperate with the track.

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

[0013] This invention enables high-precision measurement: by using paper tape to mark dots, the position of the trolley at each moment can be accurately recorded, thereby accurately calculating physical quantities such as the trolley's speed and acceleration, improving the accuracy of data measurement in mechanical experiments.

[0014] Multifunctional: This device can easily perform various mechanics experiments such as Newton's second law, uniformly accelerated linear motion, and friction, meeting the diverse experimental needs in physics teaching, reducing the frequency of equipment replacement, and improving teaching and experimental efficiency.

[0015] Easier to operate: The device has a relatively simple structure and does not require complex external auxiliary equipment, such as a gas source. The pulsed high-voltage power supply is easy to operate; the pulse frequency can be adjusted by switching on a switch to meet the requirements of different experiments, making it convenient for teachers to demonstrate in the classroom and for students to conduct independent experiments.

[0016] Lower cost: Compared to some complex experimental devices, such as air track, the material and manufacturing costs of this invention are lower, making it easier to promote and use in more schools and laboratories. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a frontal sectional view of the present invention.

[0020] Figure 4 This is a top view of the structure of this utility model;

[0021] In the diagram: 1. Placement platform; 2. Pulse high-voltage power supply; 3. Track; 4. Support base; 5. Moving trolley; 6. Release cylinder; 7. Marker ruler; 8. Thermal paper tape; 9. Trolley catcher; 10. Fixed pulley; 11. Traction block; 12. Adjusting nut; 13. Lifting slide; 14. Marking device. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please see Figure 1 and Figure 4This utility model provides a technical solution: a fixed paper tape track dotting trolley device for mechanical experiments, including a placement platform 1, a track 3 on the top of the placement platform 1, the track 3 being made of high-strength, low-friction extruded plastic with a smooth and flat surface, and a moderate length to meet the experimental requirements for the trolley's movement distance; the starting end of the track 3 is mounted on the placement platform 1 via a support 4, and an adjusting component for adjusting the inclination of the track 3 is provided between the track 3 and the support 4 to adjust the inclination and balance the friction; a moving trolley 5 is mounted on the track 3 and can slide along the track 3, and a dotting device 14 for dotting is provided at the bottom of the moving trolley 5; a thermal paper tape 8 corresponding to the movement trajectory of the dotting device 14 is mounted on the track 3, the thermal paper tape 8 being made of a rigid material. Made of a tough and non-stretchable material, the track 5 will not break or stretch during its movement and marking process, thus ensuring the accuracy of the experimental data. A track catcher 9 is installed at the end of track 3 to prevent the track 5 from slipping off track 3 at the end of the experiment. A traction component is installed on the outer edge of track 3 to pull the track 5, and a locking component is also installed on track 3 to limit the track 5 from stopping at the beginning of track 3. A pulsed high-voltage power supply 2 is also installed on the platform 1 to activate the marking device 14. When the pulsed high-voltage power supply 2 provides a pulse current, the marking needle on the marking device 14 can mark clear dots on the thermal paper tape 8. The pulsed high-voltage power supply 2 is equipped with a safety protection device to prevent electric leakage and other safety accidents during operation. In this embodiment, preferably, the traction component includes a fixed pulley 10 installed on the edge of track 3, a traction rope passing through the fixed pulley 10, and a traction block 11 suspended by the traction rope. The other end of the traction rope is connected to the track 5. In this embodiment, preferably, the locking assembly includes a release cylinder 6 fixedly installed at the starting end of the track 3, and the trolley 5 is provided with a hook that cooperates with the release cylinder 6. In this embodiment, preferably, a pair of adjusting members are provided on the support base 4 with lifting grooves 13. The starting end of the track 3 can be adjusted up and down along the lifting grooves 13 via a shaft, and both ends of the shaft have locking and positioning adjusting nuts 12. In this embodiment, preferably, a marking ruler 7 is provided on the side of the track 3 to facilitate the observer recording the movement position of the trolley 5, further improving the accuracy of the experimental data; the bottom of the trolley 5 is provided with rollers that cooperate with the track 3; ensuring that the trolley 5 can move smoothly on the track 3.

[0025] Although embodiments of the present invention have been shown and described in detail above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed paper tape track marking carriage device for mechanical experiments, comprising a placement platform (1), characterized in that: The top of the placement platform (1) is provided with a track (3). The starting end of the track (3) is mounted on the placement platform (1) via a support (4). An adjustment component for adjusting the inclination of the track (3) is provided between the track (3) and the support (4). A trolley (5) that can slide along the track (3) is provided on the track (3). A dotting device (14) for dotting is provided at the bottom of the trolley (5). A thermal paper tape (8) corresponding to the movement trajectory of the dotting device (14) is provided on the track (3). A trolley catcher (9) for preventing the trolley (5) from detaching is provided at the end of the track (3). A traction component for pulling the trolley (5) is provided on the outer edge of the track (3). A locking component for limiting the trolley (5) to stop at the starting end of the track (3) is also provided on the track (3). A pulse high-voltage power supply (2) for activating the dotting device (14) is also provided on the placement platform (1).

2. The fixed paper tape track marking carriage device for mechanical experiments according to claim 1, characterized in that: The traction assembly includes a fixed pulley (10) installed on the edge of the track (3), a traction rope passing through the fixed pulley (10), and a traction block (11) suspended by the traction rope, the other end of which is connected to the moving trolley (5).

3. The fixed paper tape track marking carriage device for mechanical experiments according to claim 1, characterized in that: The locking assembly includes a release cylinder (6) fixedly installed at the starting end of the track (3), and the moving trolley (5) is provided with a hook that cooperates with the release cylinder (6).

4. The fixed paper tape track marking carriage device for mechanical experiments according to claim 1, characterized in that: The adjusting member has a pair of lifting slide grooves (13) on the support base (4). The starting end of the track (3) can be adjusted up and down along the lifting slide grooves (13) by means of a shaft. Both ends of the shaft have adjusting nuts (12) for locking and positioning.

5. The fixed paper tape track marking carriage device for mechanical experiments according to claim 1, characterized in that: The track (3) is provided with a marking ruler (7) on its side, and the bottom of the trolley (5) is provided with rollers that cooperate with the track (3).

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