Water rocket assembly connector for delayed-release air-separation lower stage rocket body and water rocket

Abstract

This utility model relates to a delayed-release air-separation lower-stage rocket assembly connector for water rockets, used to connect two rocket bodies to form a single lower-stage rocket body. The assembly connector has a hollow screw body and a one-way valve body that is hollowly connected to the interior of the hollow screw body. The assembly connector also has a micro-hole communicating with an internal airflow channel of the hollow screw body. When the lower-stage rocket body is assembled, the micro-hole and the one-way valve body are located within the same rocket body, and the hollow screw body extends into the other rocket body. During water rocket launch, after the lower rocket body loses pressure, the air pressure in the upper rocket body can only be slowly released to the lower rocket body through the micro-hole. This significantly prolongs the depressurization time in the upper rocket body, thereby extending the time for triggering the air-separator assembly to achieve release and separation. This extends the separation time between the upper and lower rocket bodies, allowing for an interval of 1-2 seconds between launch and separation, which is more than 10 times longer than existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of model water rocket technology, specifically to a water rocket assembly connector for a water rocket with delayed air separation and the water rocket itself. Background Technology

[0002] The applicant has developed various air-separator components for water rockets. These components utilize the pressure difference between the rapid depressurization of the lower stage rocket body during launch and the upper stage rocket body to achieve separation, thus enabling the upper and lower stages to separate in mid-air. However, in current water rockets, the lower stage rocket body depressurizes very quickly after launch, causing the air-separator to trigger separation very quickly. The launch and separation times may be only 0.1 seconds or even less, making it difficult to simulate the separation effect after a long period of operation of a real rocket, and students may find it difficult to perceive the difference.

[0003] It is evident that if the depressurization velocity of the lower stage rocket body can be controlled without affecting the launch, thereby controlling the separation time of the air-to-ground separator, this applicant has developed this connector to solve this technical problem. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and to provide a lower stage rocket body assembly connector for water rockets that can be separated in the air with a time delay, thereby solving the problems of excessively short launch and separation time intervals and difficulty in observation of water rockets that can be separated in the air.

[0005] The technical solution adopted in this utility model is:

[0006] A water rocket assembly connector for a time-delayed, air-separable lower stage rocket body is provided for connecting two rocket bodies to form a single lower stage rocket body. The assembly connector has a hollow screw body and a one-way valve body that is hollowly connected to the interior of the hollow screw body. The assembly connector also has a microhole that is connected to the airflow channel inside the hollow screw body. When the lower stage rocket body is assembled, the microhole and the one-way valve body are located in the same rocket body, and the hollow screw body extends into the other rocket body.

[0007] In a preferred embodiment, the hollow screw body and the one-way valve body are coaxially integrated, with the hollow screw body facing downwards and the one-way valve body facing upwards. A limiting flange is formed on the outer wall of the connection between the hollow screw body and the one-way valve body. A first air passage is arranged axially inside the hollow screw body, and a second air passage communicating with the first air passage is provided inside the one-way valve body. An air outlet is provided on the upper end side wall of the one-way valve body, communicating with the second air passage. An elastic rubber ring is provided on the outer wall where the air outlet is located to seal the air outlet. The micropores are arranged at the connection between the one-way valve body and the hollow screw body and communicate with the second air passage and the first air passage.

[0008] The inner diameter of the micropore is 0.1mm-3.0mm, preferably 1mm.

[0009] This utility model also provides a water rocket capable of delayed aerial separation, comprising a lower stage rocket body and an upper stage rocket body, which are connected by an aerial separator assembly; characterized in that: the lower stage rocket body is formed by connecting a lower rocket body and an upper rocket body through an assembly connector, the assembly connector having a hollow screw body and a one-way valve body that is hollowly connected to the interior of the hollow screw body, the assembly connector also having a microhole that communicates with a second air passage inside the one-way valve body, and when the lower stage rocket body is assembled, the microhole and the one-way valve body are located in the same rocket body, and the hollow screw body extends into the other rocket body.

[0010] Furthermore, in the aforementioned water rocket, the hollow screw body and the one-way valve body are an integral structure, with the hollow screw body facing downwards and the one-way valve body facing upwards. A limiting flange is formed on the outer wall of the connection between the hollow screw body and the one-way valve body. A first air passage is arranged axially inside the hollow screw body, and a second air passage communicating with the first air passage is provided inside the one-way valve body. An air outlet is provided on the upper end side wall of the one-way valve body, communicating with the second air passage. An elastic rubber ring is provided on the outer wall where the air outlet is located to seal the air outlet. The microhole is arranged at the connection between the one-way valve body and the hollow screw body and communicates with the second air passage and the first air passage. The hollow screw body is inserted downwards into the lower rocket body, while the limiting flange, the one-way valve body, and the microhole are located inside the upper rocket body. By connecting the nut to the hollow screw body inside the lower rocket body and tightening the nut with the limiting flange inside the upper rocket body, the lower rocket body and the upper rocket body are tightly connected.

[0011] Furthermore, a sealing gasket is installed on the outer end wall where the upper and lower arrow bodies meet, and is fitted onto the outside of the hollow screw body.

[0012] After adopting the above-mentioned scheme, when the lower body of the water rocket loses pressure during launch, the air pressure in the upper body can only be slowly released to the lower body through the micro-holes due to the elastic rubber ring of the one-way valve body. That is, the depressurization time in the upper body will be significantly extended, which will also extend the pressure maintenance time in the upper body where the air separator assembly is located. This will extend the time for triggering the air separator assembly to release and separate, thus extending the separation time between the upper and lower stages of the rocket. The interval between the launch time and the separation time can be 1-2 seconds, which is more than 10 times longer than the existing technology. This results in a better simulated air separation launch effect and makes it easier for students to observe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly connector according to an embodiment of the present invention;

[0014] Figure 2 yes Figure 1Schematic diagram of the structure during assembly in the embodiment;

[0015] Figure 3 , Figure 4 This is a schematic diagram of another embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the structure of the lower stage of a water rocket according to an embodiment of this utility model;

[0017] Figure 6 This is a schematic diagram of the overall structure of a water rocket according to an embodiment of this utility model. Detailed Implementation

[0018] like Figure 1 As shown, this utility model describes a time-delayed, air-separable lower-stage rocket assembly connector for water rockets, used to connect two rocket bodies to form a single lower-stage rocket body 3. The assembly connector has a hollow screw body 1 and a one-way valve body 2 that is hollowly connected to the interior of the hollow screw body 1. The assembly connector also has a microhole 11 that communicates with the internal airflow channel of the hollow screw body 1. When the lower-stage rocket body is assembled, the microhole 11 and the one-way valve body 2 are located within the same rocket body, and the hollow screw body 1 extends into the other rocket body. The inner diameter of the microhole 11 is 0.1mm-3.0mm, preferably 1mm.

[0019] Combination Figure 2 As shown, Figure 1 In the embodiment, during assembly, the one-way valve body 2 is located below and inside the lower arrow body 31 via the valve body locking nut 21, and the upper end of the hollow screw body 1 is located inside the upper arrow body 32, and is locked and connected to the upper and lower arrow bodies by two nuts 12.

[0020] For example Figure 3 , Figure 4 As shown in the preferred embodiment, the hollow screw body 1 and the one-way valve body 2 are coaxially integrated, with the hollow screw body 1 facing downwards and the one-way valve body 2 facing upwards. A limiting flange 13 is formed on the outer wall of the connection between the hollow screw body 1 and the one-way valve body 2. A first air passage 101 is arranged axially inside the hollow screw body 1. The one-way valve body 2 has a second air passage 201 that communicates with the first air passage 101. An air outlet 202 that communicates with the second air passage 201 is provided on the upper end side wall of the one-way valve body 2. An elastic rubber ring 22 that can seal the air outlet 202 is provided on the outer wall where the air outlet 202 is located. The micropore 11 is arranged at the connection between the one-way valve body 2 and the hollow screw body 1 and communicates with the second air passage 201 and the first air passage 101.

[0021] Combination Figure 5 , Figure 6As shown, this utility model also provides a water rocket with delayed aerial separation, which includes a lower stage rocket body 3 and an upper stage rocket body 4. The upper stage rocket body 4 and the lower stage rocket body 3 are connected by an aerial separator assembly 5. The aerial separator assembly 5 is prior art and is described in detail in the applicant's previous patent application No. 202420709011.6, entitled "Simple Adjustable Delay Aerial Separator and Water Rocket with Such Separator", so it will not be described again here. The lower stage rocket body 3 consists of a lower rocket body 31 and an upper rocket body 32 connected by a... Figure 3 , Figure 4 The assembly connector is formed with the hollow screw body 1 inserted downward into the lower arrow body 31, while the limiting flange 13, the one-way valve body 2 and the micro-hole 11 are located in the upper arrow body 32. The lower arrow body 31 and the upper arrow body 32 are tightly connected by connecting the hollow screw body 1 in the lower arrow body 31 with the nut 12 and tightening the nut 12 and the limiting flange 13 in the upper arrow body 32.

[0022] Furthermore, a sealing gasket 14 is provided on the outer end wall where the upper and lower arrow bodies meet, and is fitted onto the outside of the hollow screw body 1. If there is no sealing gasket, it can be sealed by applying glue or other methods during assembly.

[0023] The working principle of this utility model is as follows:

[0024] In this embodiment, when assembling the lower-stage arrow body 3, the hollow screw body 1 passes through the bottom of the upper arrow body 32, the sealing gasket 14, and into the lower arrow body 31 from the bottle opening of the upper arrow body 32 using a sleeve or other tools. The limiting flange 13, the one-way valve body 2, and the micro-hole 11 are located inside the upper arrow body 32. Then, the nut 12 is connected to the bottle opening of the lower arrow body 31 using a sleeve. Tightening the nut 12 and the limiting flange 13 inside the upper arrow body 32 tightly connects the lower arrow body 31 and the upper arrow body 32, forming the lower-stage arrow body 3. A sealing gasket is provided on the outer end wall of the upper and lower arrow bodies, which is fitted onto the outside of the hollow screw body 1. When the nut is locked, it can ensure that there is no air leakage at the screw insertion point. Alternatively, if necessary, a sealing gasket can also be added to the inside of the bottle bottom.

[0025] After the lower stage rocket body 3 is assembled, it is connected to the upper stage rocket body 4 through the air separator assembly 5 to complete the water rocket assembly. When launching, the rocket body is installed on the launch pad. First, air is injected into the lower rocket body 31 through the lower port. As the air pressure inside the lower rocket body 31 increases, the airflow enters the second air passage 201 of the one-way valve body 2 from the first air passage 101 of the hollow screw body 1. On the one hand, air can be injected into the upper rocket body 32 through the micro-hole 11. At the same time, air can be released from the outlet 202 through the elastic rubber ring 22 and enter the upper rocket body 32. By using the large-diameter outlet 202 of the one-way valve body 2, the air pressure of the lower rocket body 31 and the upper rocket body 32 can be quickly balanced, shortening the inflation time.

[0026] At the same time, the airflow inside the upper arrow body 32 will enter the upper arrow body 4 through the air separator assembly 5 connected to its upper port. After the air pressure of the lower arrow body 3 and the upper arrow body 4 stabilizes, the inflation is completed.

[0027] When the launch is initiated, the lower section 31 of the lower-stage rocket body 3 will rapidly depressurize after launch, causing the entire rocket body to fly into the air. After the lower section 31 depressurizes, the air pressure in the upper section 32 can only be slowly released to the lower section 31 through the micro-hole 11 due to the elastic rubber ring 22 of the one-way valve body 2. This means that the depressurization time in the upper section 32 will be significantly prolonged, which will reduce the depressurization rate in the upper section 32 where the air separator assembly 5 is located. This will prolong the time for triggering the air separator assembly 5 to achieve release and separation, thus extending the separation time between the upper-stage rocket body 4 and the lower-stage rocket body 3. The interval between the launch time and the separation time can be 1-2 seconds, which is more than 10 times longer than the existing technology, thereby obtaining a better simulated air separation launch effect and making it easier for students to observe.

[0028] Furthermore, although theoretically connecting the upper and lower bottles directly with microporous channels can delay separation to some extent, the small channel size and airflow will significantly increase the inflation balancing time, which is not conducive to the launch experiment. However, the present invention does not increase the inflation balancing time, and balance can be achieved when inflation is completed normally.

[0029] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model 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 this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A water rocket assembly connector for a time-delayed, air-separable lower-stage rocket body, used to connect two rocket bodies to form a single lower-stage rocket body, characterized in that: The assembly connector has a hollow screw body and a one-way valve body that is hollowly connected to the interior of the hollow screw body. The assembly connector also has a microhole that is connected to the airflow channel inside the hollow screw body. When the lower stage arrow body is assembled, the microhole and the one-way valve body are located in the same arrow body, and the hollow screw body extends into another arrow body.

2. The water rocket's delayable in-flight separable lower stage rocket body assembly connector according to claim 1, wherein: The hollow screw body and the one-way valve body are coaxially integrated, with the hollow screw body facing downwards and the one-way valve body facing upwards. A limiting flange is formed on the outer wall of the connection between the hollow screw body and the one-way valve body. A first air passage is arranged axially inside the hollow screw body, and a second air passage communicating with the first air passage is provided inside the one-way valve body. An air outlet is provided on the upper end side wall of the one-way valve body, communicating with the second air passage. An elastic rubber ring is provided on the outer wall where the air outlet is located to seal the air outlet. The micropores are arranged at the connection between the one-way valve body and the hollow screw body and communicate with the second air passage and the first air passage.

3. The water rocket's delayable in-flight separable lower stage rocket body assembly connector according to claim 1 or 2, characterized in that: The inner diameter of the micropores is 0.1mm-3.0mm.

4. A water rocket capable of delayed aerial separation, comprising a lower stage and an upper stage, wherein the upper stage and the lower stage are connected by an aerial separator assembly; characterized in that: The lower-stage arrow body is formed by connecting the lower arrow body and the upper arrow body through an assembly connector. The assembly connector has a hollow screw body and a one-way valve body that is hollowly connected to the interior of the hollow screw body. The assembly connector also has a microhole that is connected to the second air passage inside the one-way valve body. When the lower-stage arrow body is assembled, the microhole and the one-way valve body are located in the same arrow body, and the hollow screw body extends into the other arrow body.

5. The water rocket capable of delayed aerial separation according to claim 4, characterized in that: The hollow screw body and the one-way valve body are an integral structure, with the hollow screw body facing downwards and the one-way valve body facing upwards. A limiting flange is formed on the outer wall of the connection between the hollow screw body and the one-way valve body. A first air passage is arranged axially inside the hollow screw body, and a second air passage communicating with the first air passage is provided inside the one-way valve body. An air outlet is provided on the upper end side wall of the one-way valve body, communicating with the second air passage. An elastic rubber ring is provided on the outer wall where the air outlet is located to seal the air outlet. The microhole is arranged at the connection between the one-way valve body and the hollow screw body and communicates with the second air passage and the first air passage. The hollow screw body is inserted downwards into the lower arrow body, while the limiting flange, the one-way valve body, and the microhole are located inside the upper arrow body. By connecting the nut to the hollow screw body inside the lower arrow body and tightening the nut with the limiting flange inside the upper arrow body, the lower arrow body and the upper arrow body are tightly connected.

6. The water rocket capable of delayed aerial separation according to claim 4, characterized in that: A sealing gasket is installed on the outer end wall where the upper and lower arrow bodies meet, and is fitted onto the outside of the hollow screw body.

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