Science popularization demonstration device for electromagnetic gun

Abstract

The utility model discloses an electromagnetic gun science popularization demonstration device which comprises a box body and an electromagnetic gun assembly, the top of one side of the box body is rotatably provided with a box cover through a hinge, the inner upper end of the box body is fixedly provided with a bearing plate, and the bearing plate is provided with a rotating assembly used for adjusting the horizontal direction of the electromagnetic gun assembly. The rotating assembly is provided with an angle adjusting assembly used for adjusting the pitching angle of the electromagnetic gun assembly. According to the portable electromagnetic gun, the electromagnetic gun assembly is integrated on the box body, when the portable electromagnetic gun needs to be carried, only the box cover needs to be closed, then the handle is lifted, the horizontal direction of the gun barrel can be adjusted and fixed through the arranged rotating assembly, and the pitching angle of the gun barrel can be adjusted through the arranged angle adjusting assembly; therefore, electromagnetic gun teaching demonstration can be carried out on students at different angles, and the whole adjusting structure is simple to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, in particular to an electromagnetic gun science popularization demonstration device. Background Art

[0002] In the current middle school physics teaching, there is a teaching course on "Faraday's Law of Electromagnetic Induction", and the electromagnetic gun is essentially the specific application of "Faraday's Law of Electromagnetic Induction".

[0003] A Chinese patent with announcement number CN201946188U discloses an electromagnetic gun teaching demonstration device, including a solenoid, a barrel, a ferromagnetic gun nail and a pulse power supply, wherein the barrel is arranged in the solenoid, the ferromagnetic gun nail is arranged in the barrel, and the solenoid is conductively controlled and connected to the pulse power supply.

[0004] The above device can be used to demonstrate electromagnetic guns, allowing students to see the experiment vividly and experience it sensually, which greatly increases students' interest in learning physics.

[0005] However, the electromagnetic gun teaching demonstration device is not easy to carry and place when in use.

[0006] To this end, an electromagnetic gun science demonstration device is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide an electromagnetic gun science demonstration device, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] The electromagnetic gun science popularization demonstration device comprises a box body and an electromagnetic gun assembly, wherein a box cover is rotatably installed on the top of one side of the box body through a hinge, a carrying plate is fixedly installed on the inner upper end of the box body, a rotating assembly for adjusting the horizontal direction of the electromagnetic gun assembly is arranged on the carrying plate, and an angle adjustment assembly for adjusting the pitch angle of the electromagnetic gun assembly is arranged on the rotating assembly.

[0010] In the electromagnetic gun science demonstration device according to the utility model, the rotating assembly includes a base and a rotating seat, the base is fixedly connected to the top of the supporting plate, a countersunk hole is opened in the middle of the rotating seat, and a threaded groove is opened in the middle of the top of the base. The lower end of the bolt passes through the countersunk hole and is threadedly fixed in the threaded groove, and the rotating seat is rotatably arranged on the top of the base.

[0011] In the electromagnetic gun science demonstration device according to the utility model, a plurality of arc-shaped slots are provided on the top of the base, and the plurality of arc-shaped slots are arranged in a ring array. An arc-shaped block is fixedly connected to the bottom of the rotating seat, and the arc-shaped block can be stuck in the arc-shaped slot.

[0012] In the electromagnetic gun science demonstration device according to the utility model, a spring is sleeved on the bolt, the bottom of the spring is pressed against the inner bottom of the countersunk hole, and the top of the spring is against the bottom of the bolt head of the bolt.

[0013] In the electromagnetic gun science popularization demonstration device according to the utility model, the electromagnetic gun assembly includes a circuit board, a barrel and a shell. The lower end of the barrel is installed on the angle adjustment assembly. The outer wall of the lower end of the barrel is sleeved with a coil. The coil is electrically connected to the circuit board. The circuit board is fixedly installed inside the box. The shell can be fired from the barrel after the coil is energized.

[0014] In the electromagnetic gun science demonstration device according to the utility model, a charging spring button for charging the capacitor on the circuit board and a firing spring button for discharging the capacitor to the coil are installed on the carrier plate.

[0015] In the electromagnetic gun science demonstration device according to the utility model, the angle adjustment assembly includes two semicircular support frames, both of which are fixedly mounted on the top of the rotating seat, and the lower end of the barrel is rotatably mounted between the two semicircular support frames through a rotating shaft, an arc-shaped slide groove is provided on the semicircular support frame, and a fixing sleeve is provided on the lower end of the barrel, and a connecting ear is formed on the fixing sleeve, and one end of the handle screw passes through the arc-shaped slide groove and is threadedly connected to the connecting ear on the fixing sleeve.

[0016] In the electromagnetic gun science popularization demonstration device according to the utility model, a handle is fixedly connected to the top of the box cover.

[0017] The utility model has at least the following beneficial effects:

[0018] The utility model integrates the electromagnetic gun assembly into the box body, and when it is needed to be carried, it is only necessary to close the box cover and then carry it by the handle;

[0019] The horizontal direction of the gun barrel can be adjusted and fixed by the provided rotating assembly, and the elevation angle of the gun barrel can be adjusted and fixed by the provided angle adjusting assembly, so that electromagnetic gun teaching demonstrations can be carried out for students at different angles. At the same time, the gun barrel can be supported when firing shells to prevent the gun barrel from moving due to the generated recoil force, and the entire adjustment structure is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the electromagnetic gun science demonstration device of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the electromagnetic gun science demonstration device of the utility model after the box cover is opened;

[0023] Figure 3 It is a partial cross-sectional structural schematic diagram of the electromagnetic gun popular science demonstration device of the utility model;

[0024] Figure 4 This is one of the partial structural schematic diagrams of the electromagnetic gun popular science demonstration device of the utility model;

[0025] Figure 5 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0026] Figure 6 This is the second partial structural schematic diagram of the electromagnetic gun popular science demonstration device of the utility model;

[0027] Figure 7 The utility model is a circuit principle block diagram of the electromagnetic gun popular science demonstration device.

[0028] Description of Figure Numbers:

[0029] 1. Box body; 2. Box cover; 201. Handle;

[0030] 3. Rotating assembly; 301. Base; 3011. Arc-shaped slot; 302. Rotating seat; 3021. Arc-shaped block; 3022. Countersunk hole; 303. Bolt; 304. Spring;

[0031] 4. Angle adjustment assembly; 401. Semicircular support frame; 402. Arc slide; 403. Fixing sleeve; 404. Handle screw;

[0032] 5. Barrel; 6. Shell; 7. Coil; 8. Charging spring button; 9. Launching spring button; 10. Capacitor. DETAILED DESCRIPTION

[0033] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0034] Please refer to Figures 1 to 7 As shown, this embodiment provides an electromagnetic gun science demonstration device, including a box body 1 and an electromagnetic gun assembly, a box cover 2 is rotatably installed on the top of one side of the box body 1 through a hinge, a bearing plate is fixedly installed on the upper end of the inner part of the box body 1, and a rotating assembly 3 for adjusting the horizontal direction of the electromagnetic gun assembly is arranged on the bearing plate, and an angle adjustment assembly 4 for adjusting the pitch angle of the electromagnetic gun assembly is arranged on the rotating assembly 3.

[0035] In this embodiment, a handle 201 is fixedly connected to the top of the box cover 2, a socket is provided on one side of the box body 1, and a buckle is provided on one side of the box cover 2. After the box cover 2 is covered on the box body 1, the buckle is buckled on the socket to fix the box cover 2 on the box body 1 for easy carrying.

[0036] Specifically, in the present embodiment, the rotating assembly 3 comprises a base 301 and a rotating base 302, the base 301 is fixedly connected to the top of the bearing plate, a countersunk hole 3022 is provided in the middle of the rotating base 302, a threaded groove is provided in the middle of the top of the base 301, the lower end of the bolt 303 passes through the countersunk hole 3022 and is threadedly fixed in the threaded groove, the rotating base 302 is rotatably arranged on the top of the base 301, a plurality of arc-shaped grooves 3011 are provided on the top of the base 301, and the plurality of arc-shaped grooves 3011 are arranged in a ring array, the bottom of the rotating base 302 is fixedly connected with an arc-shaped block 3021, and the arc-shaped block 3021 can be stuck in the arc-shaped groove 3011, a spring 304 is sleeved on the bolt 303, the bottom of the spring 304 is pressed against the inner bottom of the countersunk hole 3022, and the top of the spring 304 is against the bottom of the bolt head of the bolt 303.

[0037] By adopting the above technical solution, when it is necessary to adjust the horizontal angle of the barrel 5, it is only necessary to rotate the rotating seat 302. At this time, the arc-shaped block 3021 is pressed out from the arc-shaped slot 3011 under the squeeze of the rotation force. When it is rotated to the required angle, the rotating seat 302 is released. At this time, the arc-shaped block 3021 at the bottom of the rotating seat 302 is pressed into the corresponding arc-shaped slot 3011 again under the elastic force of the spring 304.

[0038] In this embodiment, the angle adjustment component 4 includes two semicircular support frames 401, and the two semicircular support frames 401 are fixedly installed on the top of the rotating seat 302. The lower end of the barrel 5 is rotatably installed between the two semicircular support frames 401 through a rotating shaft. An arc-shaped slide groove 402 is provided on the semicircular support frame 401, and a fixed sleeve 403 is provided on the lower end of the barrel 5. A connecting ear is formed on the fixed sleeve, and one end of the handle screw 404 passes through the arc-shaped slide groove 402 and is threadedly connected to the connecting ear on the fixed sleeve 403. When it is needed To adjust the elevation angle of the barrel 5, loosen the handle screw 404 from the connecting ear, then rotate the barrel 5. When the angle adjustment is completed, tighten the handle screw 404 again. It should be noted that one of the handle screws 404 can act as a connecting rod, that is, after the handle screw 404 is connected to the connecting ear, it will not be pressed against one side of the semicircular support frame 401, and the pressing function is performed by the other handle screw 404. In this way, the elevation angle of the barrel 5 can be adjusted by operating only one handle screw 404.

[0039] Specifically, the electromagnetic gun assembly includes a circuit board, a barrel 5 and a shell 6. The lower end of the barrel 5 is installed on the angle adjustment assembly 4. The outer wall of the barrel 5 is provided with a coil 7. The coil 7 is electrically connected to the circuit board. The circuit board is fixedly installed inside the box 1. The shell 6 can be ejected from the barrel 5 due to the magnetic field generated after the coil 7 is energized. For ease of operation, a charging spring button 8 for charging the capacitor 10 on the circuit board and a firing spring button 9 for discharging the capacitor 10 to the coil 7 are installed on the carrier plate.

[0040] When in use, first press the charging spring button 8 downward to charge the capacitor 10, then release the charging spring button 8, and then press the firing spring button 9. At this time, the capacitor 10 discharges to the coil 7, and then the current flowing through the coil 7 forms a magnetic field, which fires the shell 6 out of the barrel 5.

[0041] Among them, the circuit board has a single-chip microcomputer circuit of model STC89C51.

[0042] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. Electromagnetic gun popular science demonstration device, characterized in that: The invention comprises a box body (1) and an electromagnetic gun assembly, wherein a box cover (2) is rotatably mounted on the top of one side of the box body (1) via a hinge, a bearing plate is fixedly mounted on the upper end of the interior of the box body (1), a rotating assembly (3) for adjusting the horizontal direction of the electromagnetic gun assembly is arranged on the bearing plate, and an angle adjustment assembly (4) for adjusting the pitch angle of the electromagnetic gun assembly is arranged on the rotating assembly (3).

2. The electromagnetic gun science demonstration device according to claim 1, characterized in that: The rotating assembly (3) comprises a base (301) and a rotating seat (302); the base (301) is fixedly connected to the top of the supporting plate; a countersunk hole (3022) is provided in the middle of the rotating seat (302); a threaded groove is provided in the middle of the top of the base (301); the lower end of the bolt (303) passes through the countersunk hole (3022) and is threadedly fixed in the threaded groove; the rotating seat (302) is rotatably arranged on the top of the base (301).

3. The electromagnetic gun science demonstration device according to claim 2, characterized in that: The top of the base (301) is provided with a plurality of arc-shaped slots (3011), which are arranged in a ring array; the bottom of the rotating seat (302) is fixedly connected with an arc-shaped block (3021), and the arc-shaped block (3021) can be stuck in the arc-shaped slot (3011).

4. The electromagnetic gun science popularization demonstration device according to claim 3 is characterized in that: A spring (304) is sleeved on the bolt (303), the bottom of the spring (304) is pressed against the inner bottom of the countersunk hole (3022), and the top of the spring (304) is against the bottom of the bolt head of the bolt (303).

5. The electromagnetic gun science popularization demonstration device according to claim 4, characterized in that: The electromagnetic gun assembly comprises a circuit board, a barrel (5) and a shell (6); the lower end of the barrel (5) is mounted on the angle adjustment assembly (4); a coil (7) is sleeved on the outer wall of the lower end of the barrel (5); the coil (7) is electrically connected to the circuit board; the circuit board is fixedly mounted inside the box (1); and the shell (6) can be ejected from the barrel (5) after the coil (7) is energized.

6. The electromagnetic gun science demonstration device according to claim 5, characterized in that: A charging spring button (8) for charging a capacitor (10) on a circuit board and a firing spring button (9) for discharging the capacitor (10) to the coil (7) are mounted on the carrier plate.

7. The electromagnetic gun science popularization demonstration device according to claim 6, characterized in that: The angle adjustment assembly (4) comprises two semicircular support frames (401), both of which are fixedly mounted on the top of the rotating seat (302), and the lower end of the barrel (5) is rotatably mounted between the two semicircular support frames (401) via a rotating shaft, and an arc-shaped slide groove (402) is provided on the semicircular support frame (401), and a fixing sleeve (403) is provided at the lower end of the barrel (5), and a connecting ear is formed on the fixing sleeve, and one end of a handle screw (404) passes through the arc-shaped slide groove (402) and is threadedly connected to the connecting ear on the fixing sleeve (403).

8. The electromagnetic gun science popularization demonstration device according to any one of claims 1 to 7, characterized in that: A handle (201) is fixedly connected to the top of the box cover (2).

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