Simple adjustable delay air separator and water rocket with same

Abstract

The utility model relates to a simple adjustable delay air separator, which is used for air separation of a multi-stage water rocket body and comprises a first pipe body and an integrally formed flexible rubber hose, the upper end and the lower end of the flexible rubber hose are thick-wall parts, the middle of the flexible rubber hose is a thin-wall section, a first hose body can penetrate through the upper end of the flexible rubber hose, and the outer wall of the first hose body and the inner wall of the thin-wall section in the middle of the flexible rubber hose are in expanded contact; the lower end of the flexible rubber hose is provided with a mounting hole and a one-way valve, the outer wall of the one-way valve and the inner wall of the mounting hole are in sealed expanded connection, and air flows from the outside of the flexible rubber hose to the inside of the flexible rubber hose in the air inlet direction of the one-way valve. A flexible rubber hose integrated structure is adopted in the separator, complex split structures such as a hose, a connecting joint and a sealing ring in an existing separator are replaced, product assembly is greatly simplified, production cost is reduced, the delayed separation time can still be adjusted by adjusting the connecting tightness of a lower-stage rocket body and the flexible rubber hose, and the separation time is shortened. The air separation effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water rockets, in particular to a simple and adjustable time-delay air separator and a water rocket with the separator. Background Art

[0002] Existing water rockets usually use carbonated beverage bottles such as cola bottles as the main body of the water rocket, and a nozzle is connected to the bottle mouth. The existing water rocket launching device mainly includes a base and a quick connector connected to the nozzle on the water rocket body. The bottom of the quick connector is directly provided with an air filling port to connect to an air cylinder and other inflatable equipment. Their launching process is to first inflate, and then use a cable to pull the outer connector of the quick connector to make the quick connector loosen the rocket body and launch it. The action of this quick connector requires manual operation; on the other hand, there is currently a simulated launch of a multi-stage rocket body, but it is obviously impossible to achieve air separation between the multi-stage rocket bodies by manpower. For this reason, it is necessary to develop a device suitable for connecting the multi-stage rocket bodies and realizing automatic separation.

[0003] The applicant has participated in the research and development of "Adjustable Delay Aerial Separator and Water Rocket with Such Separator" (invention patent application publication number CN116363934A), but this type of separation launcher has too many components, the assembly is too complicated and cumbersome, and the production cost is too high. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and to provide a simple and adjustable time-delay aerial separator and a water rocket with the separator.

[0005] The technical solution adopted by the utility model is: a simple adjustable time-delay air separator, which is used for the air separation of a multi-stage water rocket body, and the separator comprises: a first tube body which can be connected with the interior of the upper stage body and extends downward, and the interior of the upper stage body is inflated through the first tube body; wherein:

[0006] The separator also includes an integrally formed soft rubber tube, which can be connected to the lower arrow body; the upper and lower ends of the soft rubber tube are thick-walled parts, and the middle part is a thin-walled section, the first tube body can be inserted from the upper end of the soft rubber tube and the outer wall of the first tube body forms an expansion contact with the inner wall of the thin-walled section in the middle of the soft rubber tube, and the upper end face of the soft rubber tube has a radial flange protruding outward; the lower end of the soft rubber tube is provided with a mounting hole connected to the outside, the inner wall of the mounting hole has a step surface, a one-way valve is installed at the mounting hole, and the outer wall of the one-way valve forms a sealing expansion connection with the inner wall of the mounting hole, and the air intake direction of the one-way valve is from the outside of the soft rubber tube to the inside of the soft rubber tube.

[0007] In the above-mentioned simple adjustable time-delay air separator: the outer wall of the thick wall portion at the upper end of the soft rubber tube is in a gradually tapering frustum-shaped shape from top to bottom.

[0008] The wall thickness of the thin-walled section of the soft rubber tube is 1.5 mm-2.5 mm, preferably 2 mm.

[0009] The utility model also provides a water rocket, including an upper rocket body and a lower rocket body, which includes the above-mentioned simple adjustable extension control separator; wherein, the upper end of the first tube body is sealed and connected to the interior of the upper rocket body through a first cover body, and the lower end extends downward, and the soft rubber tube is installed in the interior of the lower rocket body through a second cover body; the first tube body passes through the first cover body, the second cover body and penetrates into the interior of the soft rubber tube from the upper end of the soft rubber tube, and the thin-walled section of the soft rubber tube is in expansion contact with the first tube body to generate a clamping force.

[0010] The separator of the utility model adopts an integrated soft rubber hose structure, which replaces the complex split structure of the hose, connecting joints, sealing rings, etc. in the existing separator, greatly simplifies the assembly of the product and reduces the production cost. At the same time, the delayed separation time can still be adjusted by adjusting the tightness of the connection between the lower arrow body and the soft rubber hose to ensure the air separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the decomposed state of the separator of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the water rocket after being connected. DETAILED DESCRIPTION

[0013] like Figure 1-Figure 2 As shown, the utility model is a simple adjustable time-delay air separator for air separation of a multi-stage water rocket body, the separator comprises: a first tube body 1 which can be connected with the interior of the upper stage body 4 and extends downward, and the upper stage body 4 is inflated through the first tube body 1; the first tube body 1 can be made of an ordinary plastic tube, which has a certain hardness and rigidity; wherein:

[0014] The separator also includes an integrally formed soft rubber tube 2, which can be connected to the lower arrow body 5. In this embodiment, the soft rubber tube 2 can be made of silicone or rubber or other materials with certain elasticity and hardness; the upper and lower ends of the soft rubber tube 2 are thick-walled parts, and the middle part is a thin-walled section. The first tube body 1 can be inserted from the upper end of the soft rubber tube 2 and the outer wall of the first tube body 1 forms an expansion contact with the inner wall of the thin-walled section in the middle of the soft rubber tube 2. The high friction and elastic force of the inner wall of the soft rubber tube 2 are used to make the inner wall of the soft rubber tube 2 hold the first tube body 1 tightly in a natural state, so that the upper and lower arrow bodies are connected; the upper end of the soft rubber tube 2 is There is a radial flange 21 protruding outward, which is used to clamp the bottle mouth of the lower arrow body 5 for limiting; the lower end of the soft rubber tube 2 is provided with a mounting hole 22 connected to the outside, and the inner wall of the mounting hole 22 has a step surface 23, a one-way valve 3 is installed at the mounting hole 22, and the outer wall of the one-way valve 3 forms a sealing expansion connection with the inner wall of the mounting hole 22, that is, the elastic force of the inner wall of the mounting hole 22 of the soft rubber tube 2 and the outer wall of the one-way valve 3 are used to form a high friction force to position the one-way valve 3, and the step surface 23 is used to prevent the one-way valve 3 from rushing out of the soft rubber tube 2; the air intake direction of the one-way valve 3 is from the outside of the soft rubber tube 2 to the inside of the soft rubber tube 2. In this embodiment, the one-way valve 3 is a valve core structure, which has a boss that can be positioned with the step surface 23. During assembly, the one-way valve 3 is inverted on the end of a vertical shaft with a concave hole at the end, the upper end of the soft rubber tube 2 is placed downward on the vertical shaft and the one-way valve 3 is inserted into the mounting hole 22 of the soft rubber tube 2. The mounting hole 22 forms a sealing expansion connection with the one-way valve 3 and is automatically positioned using the step surface 23, thereby completing the assembly of the one-way valve 3 and the soft rubber tube 2.

[0015] In the above-mentioned simple adjustable time-delay air separator: the outer wall 24 of the thick-walled part at the upper end of the soft rubber tube 2 is a tapered frustum from top to bottom, with a certain taper. On the one hand, it is convenient for the soft rubber tube 2 to be connected to the bottle mouth of the lower arrow body 5 and form a seal. On the other hand, the gradual frustum makes the soft rubber tube 2 have a certain radial extrusion state when it is locked with the bottle cap, so that the friction force between the upper end of the soft rubber tube 2 and the first tube body 1 can be controlled.

[0016] The wall thickness of the thin-walled section of the soft rubber tube 2 is 1.5mm-2.5mm, preferably 2mm, to ensure that the thin-walled section has a certain strength to produce appropriate expansion deformation when the internal and external pressure difference is large to loosen the first tube body 1 without breaking, and to ensure that a certain clamping force is exerted on the first tube body 1 under normal conditions.

[0017] The utility model also provides a water rocket, including an upper rocket body 4 and a lower rocket body 5, which includes the above-mentioned simple adjustable extension control separator; wherein, the upper end of the first tube body 1 is sealed and connected to the upper rocket body 4 through the first cover body 41, and the lower end extends downward, and the soft rubber tube 2 is installed in the lower rocket body 5 through the second cover body 51; the first tube body 1 passes through the first cover body 41, the second cover body 51 and penetrates into the soft rubber tube 2 from the upper end thereof, and the thin-walled section of the soft rubber tube 2 is in expansion contact with the first tube body 1 to generate a clamping force.

[0018] The working principle of the utility model is as follows: the first tube body 1 is connected with the upper arrow body 4 and the main body of the tube body passes through the upper arrow body 4 and the first cover body 41, the soft rubber tube 2 is connected with the lower arrow body 5 and the main body passes through the lower arrow body 5, the upper end of the soft rubber tube 2 is locked at the bottle mouth of the lower arrow body 5 through the radial flange 21 and the second cover body 51 with an opening, and then the first tube body 1 is passed through the soft rubber tube 2 from the upper end thereof, and in a natural state, the soft rubber tube 2 and the first tube body 1 are expanded and tightly embraced;

[0019] When inflating, the lower arrow body 5 is inflated first. When the air pressure reaches a certain level, the airflow will enter the soft rubber tube 2 through the one-way valve 3 and enter the upper arrow body 4 through the first tube body 1;

[0020] When the inflation is completed and the launch is started, the air in the lower-stage arrow body 4 is discharged first and the entire water rocket is launched, and the air pressure in the lower-stage arrow body 5 is rapidly reduced. At this time, the air pressure in the upper-stage arrow body 4 is large and the one-way valve 3 will not discharge the air. Therefore, the air pressure in the upper-stage arrow body 4 causes the thin-walled section of the soft rubber tube 2 to expand, thereby reducing the friction force on the first tube 1. At the same time, under the action of the air pressure in the upper-stage arrow body 4, the upper-stage arrow body 4 and the first tube 1 are separated from the soft rubber tube 2 and the lower-stage arrow body 5, thereby realizing the separation of the upper and lower arrow bodies;

[0021] The method for adjusting the separation time of the water rocket of the present invention is to adjust the tightness of the connection between the second cover body 51 of the lower-stage rocket body 5 and the bottle mouth and the upper end of the soft rubber tube 2. When the second cover body 51 is tightened, the upper end of the soft rubber tube 2 is squeezed toward the middle, so that the clamping force and friction force between it and the first tube body 1 are greater, and therefore a greater pressure difference, i.e., a longer time, is required to achieve the separation of the first tube body 1 and the soft rubber tube 2. Conversely, when the second cover body 51 is not screwed too tightly, the clamping force and friction force between the upper end of the soft rubber tube 2 and the first tube body 1 are small, and therefore the time for the first tube body 1 to separate from the soft rubber tube 2 is shorter.

[0022] To sum up, the separator of the utility model adopts an integrated soft rubber hose structure, which replaces the complex split structure of the hose, connecting joints, sealing rings, etc. in the existing separator, greatly simplifies the assembly of the product and reduces the production cost. At the same time, the delayed separation time can still be adjusted by adjusting the tightness of the connection between the lower arrow body and the soft rubber hose to ensure the air separation effect.

[0023] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A simple and adjustable time-delay air separator for air separation of a multi-stage water rocket body, the separator comprising: A first tube body which can be connected with the interior of the upper rocket body and extends downward, and the interior of the upper rocket body is inflated through the first tube body; the characteristics are: The separator also includes an integrally formed soft rubber tube, which can be connected to the lower arrow body; the upper and lower ends of the soft rubber tube are thick-walled parts, and the middle part is a thin-walled section, the first tube body can be inserted from the upper end of the soft rubber tube and the outer wall of the first tube body forms an expansion contact with the inner wall of the thin-walled section in the middle of the soft rubber tube, and the upper end face of the soft rubber tube has a radial flange protruding outward; the lower end of the soft rubber tube is provided with a mounting hole connected to the outside, the inner wall of the mounting hole has a step surface, a one-way valve is installed at the mounting hole, and the outer wall of the one-way valve forms a sealing expansion connection with the inner wall of the mounting hole, and the air intake direction of the one-way valve is from the outside of the soft rubber tube to the inside of the soft rubber tube.

2. The simple adjustable time-delay air separator according to claim 1 is characterized in that: The outer wall of the thick wall portion at the upper end of the soft rubber tube is in a tapered frustum shape from top to bottom.

3. The simple adjustable time-delay air separator according to claim 1 is characterized in that: The wall thickness of the thin-wall section of the soft rubber tube is 1.5 mm to 2.5 mm.

4. A water rocket, comprising an upper stage rocket body and a lower stage rocket body, characterized in that: It includes the simple adjustable extension control separator as described in any of the above claims; wherein, the upper end of the first tube body is sealed and connected to the interior of the upper rocket body through the first cover body, and the lower end extends downward, and the soft rubber tube is installed in the interior of the lower rocket body through the second cover body; the first tube body passes through the first cover body, the second cover body and penetrates into the interior of the soft rubber tube from the upper end of the soft rubber tube, and the thin-walled section of the soft rubber tube expands and contacts with the first tube body to generate a clamping force.

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