Small steam boat model for teaching experiment

Abstract

The utility model relates to a small steam boat model for teaching experiments, which belongs to the technical field of small steam boat models for teaching experiments and comprises a boat body provided with a power mechanism. The power mechanism comprises two power spraying pipes fixed to the bottom face of the ship body, a spiral pipe is installed between the top ends of the two power spraying pipes, installation assemblies used for fixing the spiral pipe are arranged at the top ends of the power spraying pipes, and an installation base is installed on the inner bottom wall of the ship body. A fixing assembly used for fixing the mounting seat is arranged on the ship body, a three-core candle is fixed on the top surface of the mounting seat, a threaded groove is formed in the top surface of the mounting seat, a wind shield is in threaded connection with the interior of the threaded groove, and a plurality of air inlet holes are formed in the peripheral wall of the wind shield. According to the small steam boat model for the teaching experiment, efficient and rapid heating is conducted through the three-core candle, the heating time of the model is shortened, the end, away from the spiral pipe, of the power spraying pipe is immersed in water, and safety is better.

Description

Technical Field

[0001] The utility model relates to the technical field of small steamship models for teaching experiments, and particularly relates to a small steamship model for teaching experiments. Background Technique

[0002] Steam, also known as water vapor, is mainly used for heating, humidifying, and can also generate power to drive machines, etc. A steam-powered ship is a ship that uses steam to drive the ship forward. The beginning of the steamship era can be traced back to 1807. Knowledge related to steam is also an important part of primary and secondary school teaching. For the convenience of teaching, many small steamship models for teaching experiments have emerged on the market.

[0003] For example, Chinese Patent (Publication No.: CN206249723U) discloses a steam power demonstration device, including a sliding hull, a fixed bottom plate, a heating bottle support frame, a support frame installation groove, a candle embedding groove, a heating candle, a flame extinguishing prevention cylinder, a heating bottle collar, a heating steam bottle, a sealing plug, a steam outlet pipe, and a limiting flange; the fixed bottom plate is horizontally arranged inside the sliding hull, the support frame installation groove is arranged on the fixed bottom plate, the heating bottle support frame is inserted into the support frame installation groove, the candle embedding groove is arranged at the front part of the fixed bottom plate, the heating candle is inserted into the candle embedding groove, the flame extinguishing prevention cylinder coaxially covers the outside of the heating candle, the heating bottle collar is arranged at the top of the heating bottle support frame, the limiting flange is arranged on the heating steam bottle, the sealing plug is hermetically inserted into the bottle mouth of the heating steam bottle, and one end of the steam outlet pipe penetrates through the sealing plug and is inserted into the heating steam bottle, which is used to demonstrate the steam power principle, can adjust the power direction, is convenient for the teaching and demonstration of physical mechanics, and has strong intuitiveness.

[0004] However, there are still some deficiencies in the above-mentioned retrieved patent. During the process of the steam bottle spraying out water vapor to push the ship forward, it will bring out high-temperature water to a certain extent, which is somewhat dangerous for students observing the steam phenomenon and is inconvenient to use. Therefore, this application proposes a small steamship model for teaching experiments to solve the above problems. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a small steamship model for teaching experiments, which has the advantages of high safety, etc., and solves the problem that the device disclosed in the above-mentioned retrieved patent is prone to spraying out high-temperature water vapor and causing scalding during use, and has poor safety.

[0006] To achieve the above object, the utility model provides the following technical solution: A small steamship model for teaching experiments, including a hull, and a power mechanism is arranged on the hull;

[0007] The power mechanism includes two power nozzles fixed to the bottom surface of the hull. A spiral tube is installed between the tops of the two power nozzles. The top of the power nozzle is provided with a mounting component for fixing the spiral tube. A mounting seat is installed on the inner bottom wall of the hull, and the hull is provided with a fixing component for fixing the mounting seat. The top surface of the mounting seat is fixed with a three-wick candle. A threaded groove is formed on the top surface of the mounting seat, and a wind shield is threadedly connected in the threaded groove. A plurality of air inlet holes are formed on the outer peripheral wall of the wind shield.

[0008] Furthermore, the mounting component includes a circular bin rotatably connected to the outer peripheral wall of the power nozzle. One end of the spiral tube close to the power nozzle is fixed with a connecting ring threadedly connected to the circular bin. The top of the power nozzle is fixed with a sealing ring, and a sealing gasket is fixed on the top surface of the sealing ring.

[0009] Furthermore, the fixing component includes two limiting plates arranged vertically and fixed to the side of the two power nozzles facing the mounting seat. Two annular grooves are formed on the outer peripheral wall of the mounting seat, and two elastic limiting ropes are fixed between the front and rear inner walls of the hull.

[0010] Furthermore, the power nozzle is an L-shaped thin-walled copper tube, and the top of the power nozzle extends to the top of the hull. The spiral tube is a spiral thin-walled copper tube.

[0011] Furthermore, the spiral tube and the three-wick candle are vertically opposite to each other. The wind shield is an annular heat-insulating shield. The wind shield and the three-wick candle are located on the same central axis. A plurality of air inlet holes are close to the bottom of the wind shield and are equidistantly distributed along the circumferential direction thereof.

[0012] Furthermore, the top surface of the circular bin is open. A circular hole for the power nozzle to pass through is formed on the bottom surface of the circular bin. Mutually adapted spiral grooves are formed on the outer peripheral wall of the connecting ring and the inner peripheral wall of the circular bin. The sealing gasket is an annular rubber gasket.

[0013] Furthermore, the two annular grooves and the two elastic limiting ropes are both arranged vertically. The limiting plate is clamped in the annular groove and is located on the left side of the mounting seat. The elastic limiting rope is clamped in the annular groove and is located on the right side of the mounting seat.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] 1. When in use, the small steamship model for teaching experiments heats the spiral tube efficiently and quickly through the three-wick candle set in the power mechanism, reducing the heating time of the model. The spiral tube cooperates with the power nozzle to generate steam, and then the steam is used to push the hull to move. When spraying steam, the end of the power nozzle far from the spiral tube is immersed in water, so that the sprayed hot water and hot air will not splash on the bodies of the surrounding observing students, effectively avoiding the occurrence of scalding and having better safety.

[0016] 2. The small steamship model for teaching experiments is provided with a wind shield in the power mechanism to protect the flame intensity of the three-wick candle, reducing the influence of the airflow on the flame when the hull moves and ensuring the efficient heating of the three-wick candle. In addition, the spiral tube can be easily disassembled through the set installation component, facilitating the cleaning of the carbon black on the outer peripheral wall of the spiral tube. The mounting base can be disassembled through the fixing component, facilitating the replacement and cleaning of the three-wick candle, and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the present utility model;

[0018] Figure 2 It is a front sectional view schematic diagram of the hull of the present utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the wind shield of the present utility model;

[0020] Figure 4 It is a front sectional view schematic diagram of the installation component of the present utility model;

[0021] Figure 5 It is a top view schematic diagram of a partial structure of the fixing component of the present utility model.

[0022] In the figure: 1 hull, 2 power mechanism, 201 power nozzle, 202 spiral tube, 203 mounting base, 204 three-wick candle, 205 thread groove, 206 wind shield, 207 air inlet hole, 3 installation component, 301 circular bin, 302 connecting ring, 303 sealing ring, 304 sealing gasket, 305 circular hole, 306 spiral groove, 4 fixing component, 401 limiting plate, 402 annular groove, 403 elastic limiting rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , a small steamship model for teaching experiments in this embodiment includes a hull 1, and a power mechanism 2 is provided on the hull 1. It should be noted that the hull 1 is made of heat-resistant lightweight plastic structure, so that the hull 1 can float on the water surface, and then the power mechanism 2 is set to generate thrust to push the hull 1 to move to simulate a steamship for students to observe and learn.

[0025] Please refer to Figures 1 to 3 , the power mechanism 2 includes two power nozzles 201 fixed to the bottom surface of the hull 1. A spiral tube 202 is installed between the tops of the two power nozzles 201. An installation component 3 for fixing the spiral tube 202 is provided at the top of the power nozzle 201. The installation component 3 facilitates the disassembly of the spiral tube 202 and provides convenience for cleaning the carbon black on the outer peripheral wall of the spiral tube 202. An installation seat 203 is installed on the inner bottom wall of the hull 1, and a fixing component 4 for fixing the installation seat 203 is provided on the hull 1. The fixing component 4 enables the disassembly of the installation seat 203, providing convenience for the replacement and cleaning of the three-wick candle 204, further improving the practicality of the device. The top surface of the installation seat 203 is fixed with a three-wick candle 204, and the spiral tube 202 and the three-wick candle 204 are vertically opposite. The power nozzle 201 is an L-shaped thin-walled copper tube, and the spiral tube 202 is a spiral thin-walled copper tube. When in use, the three-wick candle 204 is lit, and the three-wick candle 204 generates three flames to heat the spiral tube 202. The strong fire makes the heating efficiency higher, effectively reducing the heating time. Both the power nozzle 201 and the spiral tube 202 are slender thin-walled copper tubes, which can effectively store more water. When the spiral tube 202 is heated, after a part of the hot water is ejected from one side of the power nozzle 201, a negative pressure is formed inside the spiral tube 202, which can make the water at the bottom of the hull 1 supplement and enter the inside of the spiral tube 202 from the other power nozzle 201. Since the fire intensity of heating has been enhanced, the cold water in the spiral tube 202 is quickly heated, ensuring that the hull 1 can continuously eject hot water to reduce pauses, so that the hull 1 can continuously move forward. A threaded groove 205 is opened on the top surface of the installation seat 203, and a wind shield 206 is threadedly connected in the threaded groove 205. A plurality of air inlet holes 207 are opened on the outer peripheral wall of the wind shield 206. When the three-wick candle 204 burns, the wind shield 206 is provided to protect the flame, preventing the flame from fluttering in the horizontal direction due to air flow and affecting the heating of the spiral tube 202. The air inlet holes 207 enable air to enter from the bottom of the wind shield 206 to maintain the burning of the three-wick candle 204.

[0026] The top end of the power nozzle 201 extends to the top of the hull 1. When spraying steam, the end of the power nozzle 201 away from the spiral tube 202 is immersed in water, so that the sprayed hot water and hot air will not splash on the bodies of the students observing around, effectively avoiding the occurrence of scalding, and the safety is better. The windshield 206 is an annular heat insulation cover. The windshield 206 and the three-core candle 204 are located on the same central axis. A plurality of air inlet holes 207 are close to the bottom of the windshield 206 and are evenly distributed along the circumferential direction thereof.

[0027] Please refer to Figure 4 , in this embodiment, the installation assembly 3 includes a circular bin 301 rotatably connected to the outer peripheral wall of the power nozzle 201. One end of the spiral tube 202 close to the power nozzle 201 is fixed with a connection ring 302 threadedly connected to the circular bin 301. Thread grooves 306 that are mutually adapted are provided on the outer peripheral wall of the connection ring 302 and the inner peripheral wall of the circular bin 301. When it is necessary to disassemble the spiral tube 202 to clean the carbon black on its peripheral wall, rotate the circular bin 301 so that the thread groove 306 on the circular bin 301 is disengaged from the thread groove 306 on the connection ring 302, and then the spiral tube 202 can be disassembled. A sealing ring 303 is fixed to the top end of the power nozzle 201, and a sealing gasket 304 is fixed to the top surface of the sealing ring 303. The sealing gasket 304 is an annular rubber gasket. After the carbon black on the outer wall of the spiral tube 202 is cleaned, abut the connection ring 302 against the sealing ring 303, and then rotate the circular bin 301 to threadedly connect it with the connection ring 302 by means of the mating thread grooves 306, and make the connection ring 302 press the sealing gasket 304.

[0028] The top surface of the circular bin 301 is open, and a circular hole 305 through which the power nozzle 201 passes is provided on the bottom surface of the circular bin 301. The circular hole 305 enables the circular bin 301 to rotate relative to the power nozzle 201, and at the same time, the sealing ring 303 can be provided to prevent the circular bin 301 from falling off, which may cause inconvenience.

[0029] Please refer to Figure 5In this embodiment, the fixing assembly 4 includes two limit plates 401 which are distributed up and down and fixed on the side of the two power nozzles 201 facing the mounting seat 203. Two annular grooves 402 are provided on the outer peripheral wall of the mounting seat 203. Two elastic limit ropes 403 are fixed between the front and rear inner walls of the hull 1. The two annular grooves 402 and the two elastic limit ropes 403 are distributed up and down. The limit plate 401 is clamped in the annular groove 402 and is located on the left side of the mounting seat 203. The elastic limit rope 403 is clamped in the annular groove 402 and is located on the right side of the mounting seat 203. When the three-core candle 204 needs to be cleaned and replaced, the elastic limit rope 403 is clamped in the annular groove 402 and is located on the right side of the mounting seat 203. The limiting rope 403 is pulled to the right to disengage it from the annular groove 402 on the mounting seat 203, and the mounting seat 203 is further moved to the right to make the limiting plate 401 disengage from the annular groove 402. At this time, the mounting seat 203 can be removed from the hull 1. Further, the wind shield 206 is rotated to disengage it from the threaded groove 205 on the mounting seat 203. At this time, the three-wick candle 204 can be replaced and cleaned. After cleaning, the above operation is reversed and the mounting seat 203 is fixed by the fixing component 4 to prevent the mounting seat 203 from moving when the hull 1 is traveling, causing the three-wick candle 204 to be offset and unable to heat the spiral tube 202.

[0030] The working principle of the above embodiment is:

[0031] (1) When in use, the three-wick candle 204 is lit, and the three-wick candle 204 generates three flames to heat the spiral tube 202. The strong firepower makes the heating efficiency higher and effectively reduces the heating time. The power nozzle 201 and the spiral tube 202 are both slender thin-walled copper tubes that can effectively store more water. When the spiral tube 202 is heated, after the power nozzle 201 on one side sprays out a part of hot water, a negative pressure is formed in the spiral tube 202, which can allow the water at the bottom of the hull 1 to be replenished from the other power nozzle 201 into the spiral tube 202. Since the intensity of the heating firepower has been enhanced, the cold water in the spiral tube 202 is quickly heated, ensuring that the hull 1 can continue to spray hot water to reduce pauses, so that the hull 1 can continue to move forward. When the three-wick candle 204 is burning, the windshield 206 is provided to protect the flame to prevent the airflow from causing the flame to float in the horizontal direction and affect the heating of the spiral tube 202. The air inlet 207 allows air to enter from the bottom of the windshield 206 to maintain the burning of the three-wick candle 204;

[0032] (2) When it is necessary to disassemble the spiral tube 202 to clean the carbon black on its peripheral wall, rotate the circular bin 301 so that the spiral groove 306 on the circular bin 301 is disengaged from the spiral groove 306 on the connecting ring 302, then the spiral tube 202 can be disassembled. After the cleaning is completed, abut the connecting ring 302 against the sealing ring 303, and then rotate the circular bin 301 to threadedly connect it with the connecting ring 302 by means of the mating spiral grooves 306, and make the connecting ring 302 and the sealing ring 303 press the gasket 304;

[0033] (3) When it is necessary to clean and replace the three-core candle 204, pull the elastic limiting rope 403 to the right to disengage it from the annular groove 402 on the mounting seat 203, and further move the mounting seat 203 to the right so that the limiting plate 401 disengages from the annular groove 402. At this time, the mounting seat 203 can be removed from the hull 1. Further, rotate the windshield 206 to disengage it from the threaded groove 205 on the mounting seat 203. At this time, the three-core candle 204 can be replaced and cleaned. After the cleaning is completed, reverse the above operations and fix the mounting seat 203 through the fixing assembly 4 to prevent the mounting seat 203 from moving during the navigation of the hull 1, which may cause the three-core candle 204 to shift and fail to heat the spiral tube 202.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small steamship model for teaching experiments, comprising a hull (1), characterized in that: The hull (1) is provided with a power mechanism (2); The power mechanism (2) comprises two power nozzles (201) fixed to the bottom surface of the hull (1); a spiral tube (202) is installed between the top ends of the two power nozzles (201); a mounting assembly (3) for fixing the spiral tube (202) is provided at the top end of the power nozzle (201); a mounting seat (203) is installed on the inner bottom wall of the hull (1); a fixing assembly (4) for fixing the mounting seat (203) is provided on the hull (1); a three-wick candle (204) is fixed on the top surface of the mounting seat (203); a threaded groove (205) is provided on the top surface of the mounting seat (203); a windshield (206) is connected to the threaded groove (205) through an inner thread; and a plurality of air inlet holes (207) are provided on the outer peripheral wall of the windshield (206).

2. A small steamship model for teaching experiments according to claim 1, characterized in that: The mounting assembly (3) comprises a circular bin (301) rotatably connected to the outer peripheral wall of the power nozzle (201); a connecting ring (302) threadedly connected to the circular bin (301) is fixed to one end of the spiral tube (202) close to the power nozzle (201); a sealing ring (303) is fixed to the top end of the power nozzle (201); and a sealing gasket (304) is fixed to the top surface of the sealing ring (303).

3. A small steamship model for teaching experiments according to claim 1, characterized in that: The fixing assembly (4) comprises two limit plates (401) which are distributed up and down and fixed on the side of the two power nozzles (201) facing the mounting seat (203); two annular grooves (402) are provided on the outer peripheral wall of the mounting seat (203); and two elastic limit ropes (403) are fixed between the front and rear inner walls of the hull (1).

4. A small steamship model for teaching experiments according to claim 1, characterized in that: The power nozzle (201) is an L-shaped thin-wall copper tube, the top end of the power nozzle (201) extends to the top of the hull (1), and the spiral tube (202) is a spiral thin-wall copper tube.

5. The small steamship model for teaching experiment according to claim 1, characterized in that: The spiral tube (202) and the three-wick candle (204) are opposite to each other in the vertical direction, the wind shield (206) is an annular heat insulation shield, the wind shield (206) and the three-wick candle (204) are located on the same central axis, and the plurality of air inlet holes (207) are close to the bottom of the wind shield (206) and are evenly distributed along its circumferential direction.

6. A small steamship model for teaching experiments according to claim 2, characterized in that: The top surface of the circular bin (301) is open, and the bottom surface of the circular bin (301) is provided with a circular hole (305) for the power nozzle (201) to pass through. The outer peripheral wall of the connecting ring (302) and the inner peripheral wall of the circular bin (301) are both provided with spiral grooves (306) that fit each other, and the sealing gasket (304) is an annular rubber gasket.

7. A small steamship model for teaching experiments according to claim 3, characterized in that: The two annular grooves (402) and the two elastic limiting ropes (403) are distributed up and down, the limiting plate (401) is clamped in the annular groove (402) and is located on the left side of the mounting seat (203), and the elastic limiting rope (403) is clamped in the annular groove (402) and is located on the right side of the mounting seat (203).

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