Water rocket extension spray pipe and water rocket with parachute based on extension spray pipe

Abstract

The utility model relates to an extension spray pipe for a water rocket and the water rocket, the extension spray pipe comprises a hollow spray pipe, one end of the hollow spray pipe is provided with an internal thread interface which is in butt joint with a bottle opening at the bottom of a water rocket body, and the other end of the hollow spray pipe is provided with a clamping flange which is connected with a water rocket launcher. And a parachute device is mounted on the extended spray pipe. After the scheme is adopted, the extension spray pipe is additionally arranged below the bottle opening of the water rocket body, the path is longer when water or gas in the water rocket is sprayed in the linear direction where the axis of the extension spray pipe is located, and therefore the directionality of water rocket launching can be better, and the whole water rocket can obtain a better launching effect; the extension spray pipe provides a better and more convenient installation part for the parachute device, the current situation that a traditional water rocket parachute can only be installed on the head of a water rocket is changed, the installation structure of the parachute and the structure of a water rocket body are simplified, and the flying effect of the water rocket cannot be affected when the parachute is installed on the lower portion.

Description

Technical Field

[0001] This utility model relates to the field of model water rocket technology, specifically to a water rocket extended nozzle and a parachute-equipped water rocket based on the extended nozzle. Background Technology

[0002] When existing water rockets are launched, the water and gas inside the rocket body are sprayed directly from the bottom nozzle. This method results in a short and erratic path for the water and air flow, making it difficult to control the direction of the water rocket after launch and thus difficult to achieve the desired launch effect.

[0003] Furthermore, to prevent water rockets from falling directly from the sky and being destroyed during descent, existing water rockets are often equipped with parachute devices. However, currently, the parachute is usually installed at the front end, i.e., the upper part, because there is no space to install the parachute at the lower end, which needs to be connected to the launch pad. Installing it at the upper part often results in a complex structural design, which not only affects the appearance of the product but also its flight performance. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a water rocket extended nozzle and a water rocket with a parachute based on the extended nozzle, so as to solve the problems of poor directionality during water rocket launch and inconvenient installation of the parachute, which affects the flight effect.

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

[0006] An extended nozzle for a water rocket includes a hollow nozzle, one end of which has an internally threaded interface that mates with the bottle mouth at the bottom of the water rocket body, and the other end of which has a snap-fit ​​flange that connects to the water rocket launcher.

[0007] The extended nozzle has a split structure, including a hollow nozzle, a first sleeve and a second sleeve respectively fitted onto both ends of the hollow nozzle. The inner wall of the first sleeve has a smooth section and an internally threaded section. The smooth section is fitted onto the end of the hollow nozzle and fixed with adhesive. The internally threaded section forms the internally threaded interface. The inner diameter of the second sleeve is approximately equal to the outer diameter of the hollow nozzle, and the snap-fit ​​flange is formed through the inner end face of the second sleeve.

[0008] Preferably, the ratio of the overall length of the extended nozzle to the length of the water rocket body is 1:10 to 1:1.

[0009] This utility model also provides a water rocket with an extended nozzle, which includes a water rocket body and an extended nozzle connected to the bottom of the body.

[0010] Furthermore, a parachute device is installed on the extended nozzle.

[0011] Specifically, the parachute device includes a folding parachute pack, parachute lines connected to the folding parachute pack, and a parachute release mechanism installed outside the extension nozzle. The outer end of the parachute lines is connected to the outside of the extension nozzle. The parachute release mechanism includes a rollable sheet with one end connected to the outer wall of the extension nozzle, a timer installed on the outside of the movable end of the rollable sheet, and an elastic band connected to the timer. One end of the elastic band is fixedly installed, and the timer is provided with a timing lever that can be connected to the movable end of the elastic band.

[0012] The timer is also provided with an anti-rotation part that can rotate simultaneously with the timer lever. The anti-rotation part has a pin hole on its side wall along the radial direction. A retaining ring is provided around the anti-rotation part, and a slot is provided on the retaining ring to expose the pin hole.

[0013] After adopting the above-mentioned solution, this utility model has two advantages. First, by adding an extended nozzle below the bottle mouth of the water rocket body, the water or gas inside the water rocket travels a longer path when sprayed along the straight line of the extended nozzle axis, thereby improving the directionality of the water rocket launch and achieving a better overall launch effect. Second, the extended nozzle provides a better and more convenient installation location for the parachute device, changing the traditional situation where the water rocket parachute can only be installed at the head of the water rocket. This simplifies the installation structure of the parachute and the structure of the water rocket body, improves the appearance of the water rocket, and ensures that the parachute is installed at the bottom without affecting the flight effect of the water rocket, which is beneficial for the recovery of the water rocket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an extended nozzle according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the extended nozzle structure according to another embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure connecting the extended nozzle to the water rocket body;

[0017] Figure 4 This is a schematic diagram of the structure of the water rocket with parachute of this utility model;

[0018] Figure 5 This is a schematic diagram of the parachute-equipped water rocket of this utility model from an upward perspective;

[0019] Figure 6 This is a schematic diagram of the timer structure in this utility model. Detailed Implementation

[0020] like Figure 1As shown, this utility model describes an extended nozzle for a water rocket. The extended nozzle 1 includes a hollow nozzle 11. One end of the hollow nozzle 11 has an internally threaded interface 12 that mates with the bottom opening of the water rocket body 2. The other end of the hollow nozzle 11 has a snap-fit ​​flange 13 that connects to the water rocket launcher (not shown in the figure). To ensure the sealing of the connection between the bottom opening of the water rocket body 2 and the internally threaded interface 12, a stepped surface can be provided on the outer end face of the internally threaded interface 12 for installing a sealing ring. The outer diameter of the hollow nozzle 11 is smaller than the outer diameter of the water rocket body and is approximately equal to the outer diameter of the cap. The length of the extended nozzle 1 is at least 5 cm, and can be longer, such as 50 cm or 100 cm, depending on the length of the water rocket body 2. Preferably, the ratio of the overall length of the extended nozzle 1 to the length of the water rocket body 2 is 1:10 to 1:1. By using an extended nozzle 1, the water or gas inside the water rocket body 2 travels a longer path when ejected along the straight line of the axis of the hollow nozzle 1, which can improve the directionality of the water rocket launch and enable the water rocket to achieve a better overall launch effect.

[0021] like Figure 2 As shown, in this embodiment, the extended nozzle 1 is a split structure, including a hollow nozzle 11, a first sleeve 14 and a second sleeve 15 respectively sleeved at both ends of the hollow nozzle 11. The inner wall of the first sleeve 14 has a smooth section and an internal thread section. The smooth section is sleeved with the end of the hollow nozzle 11 and fixed with adhesive. The internal thread section forms the internal thread interface 12. The inner diameter of the second sleeve 15 is equivalent to the outer diameter of the hollow nozzle 11, and the snap-fit ​​flange 13 is formed through the inner end face of the second sleeve 15.

[0022] Combination Figure 3 , Figure 4 , Figure 5 As shown, this utility model also provides a water rocket with an extended nozzle, which includes a water rocket body 2, an extended nozzle 1 connected to the bottom of the water rocket body 2, and a parachute device 3 installed on the extended nozzle 1.

[0023] Specifically, the parachute device 3 includes a folding parachute pack 31, parachute lines 32 connected to the folding parachute pack 31, and a parachute release mechanism 4 installed outside the extension nozzle 1. The outer end of the parachute lines 32 is connected to the outside of the extension nozzle 1 and is fixed by binding or adhesive. The parachute release mechanism 4 includes a rollable sheet 41 with one end connected to the outer wall of the hollow nozzle 11 of the extension nozzle 1, a timer 5 installed on the outside of the movable end of the rollable sheet 41, and an elastic band 42 connected to the timer 5. One end of the elastic band 42 is fixedly installed. In this embodiment, one end of the elastic band 42 is fixedly pressed between the timer 5 and the rollable sheet 41. The timer 5 is provided with a timing lever 51 that can be connected to the movable end of the elastic band 42. Of course, the fixed end of the elastic band 42 can also be installed on the extension nozzle 1; the rollable sheet 41 is a transparent elastic plastic sheet with a certain hardness and bending toughness, about 1-3mm thick, and the length does not need to be too long, just enough to basically cover the parachute pack. Before the parachute pack is opened, it is mainly tied tightly by the elastic band 42 to prevent it from coming loose; the rollable sheet 41 is mainly used to install the timer 5 and connect the elastic band 42, and also makes the parachute pack more neatly wrapped and the appearance more tidy before it is opened.

[0024] Combination Figure 6 As shown, the timer 5 is also provided with an anti-rotation part 52 that can rotate simultaneously with the timer lever 51. The anti-rotation part 52 has a pin hole 521 radially arranged on its side wall. A retaining ring 53 is provided around the anti-rotation part 52. The retaining ring 53 has a slot 531 that allows the pin hole 521 to be exposed. Before launch, the timer lever 51 is rotated to set the parachute opening time (simultaneously tightening the elastic band 42 to increase its elasticity), and the pin hole 521 on the anti-rotation part 5 is exposed towards the slot 531. A pin 54, with one end connected to the launch pad by a wire, is inserted into the pin hole 521 of the anti-rotation part 52 from the slot 531. The side wall of the slot 531 and the pin 54 stop the anti-rotation part 52 from returning to its original position, and the timer lever 51 remains stationary even with the elastic band 42 wrapped around it. When the water rocket is launched away from the launch pad, the pin 54, with one end connected to the launch pad by a wire, will fall out of the pin hole 521. At this time, the anti-rotation part 52 loses its locking position and rotates simultaneously with the timer lever 51. After the timer lever 51 rotates and resets, the elastic band 42 separates from the timer lever 51 under its elasticity, thus completing the parachute opening action.

[0025] like Figure 4 , Figure 5As shown, during assembly and use, the outer end of the parachute rope 32 is first fixedly connected to the outer wall of the middle part of the extension nozzle 1 by binding or gluing; the inner end of the rollable sheet 41 is also connected to the outer wall of the extension nozzle 1 by gluing. The folding parachute pack 31 is wrapped around the outside of the extension nozzle 1 along the rollable sheet 41 and fixed by the elastic band 42. Then, the outer end of the elastic band 42 is put onto the timing lever 51 of the timer 5. The timing lever 51 is rotated to start the timer. The more rotations, the longer the timer. The elastic band 42 is also tighter; when the water rocket is released, the timer 5 starts timing and the timing lever 51 starts to rotate. As the timing ends, the elastic band 42 returns to the position it was initially attached to the timing lever 51. Under the elastic force generated when winding the rollable sheet 41 and the folding parachute 31, the elastic band 42 will disengage from the timing lever 51, thereby losing the binding force of the rollable sheet 41 and the folding parachute 31. The folding parachute 31 will detach from the rollable sheet 41, fall out and unfold, thus completing the opening of the parachute.

[0026] After adopting the above-mentioned solution, this utility model has two advantages. First, by adding an extended nozzle below the bottle mouth of the water rocket body, the water or gas inside the water rocket travels a longer path when sprayed along the straight line of the extended nozzle axis, thereby improving the directionality of the water rocket launch and achieving a better overall launch effect. Second, the extended nozzle provides a better and more convenient installation location for the parachute device, changing the traditional situation where the water rocket parachute can only be installed at the head of the water rocket. This simplifies the installation structure of the parachute and the structure of the water rocket body, improves the appearance of the water rocket, and ensures that the parachute is installed at the bottom without affecting the flight effect of the water rocket, which is beneficial for the recovery of the water rocket.

[0027] 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. An extended nozzle for water rockets, characterized by: The extended nozzle includes a hollow nozzle, one end of which has an internal threaded interface that mates with the bottle opening at the bottom of the water rocket body, and the other end of which has a snap-fit ​​flange that connects to the water rocket launcher.

2. The extended nozzle for water rockets according to claim 1, characterized in that: The extended nozzle has a split structure, including a hollow nozzle, a first sleeve and a second sleeve respectively fitted onto both ends of the hollow nozzle. The inner wall of the first sleeve has a smooth section and an internally threaded section. The smooth section is fitted onto the end of the hollow nozzle and fixed with adhesive. The internally threaded section forms the internally threaded interface. The inner diameter of the second sleeve is approximately equal to the outer diameter of the hollow nozzle, and the snap-fit ​​flange is formed through the inner end face of the second sleeve.

3. The extended nozzle for water rockets according to claim 1, characterized in that: The ratio of the overall length of the extended nozzle to the length of the water rocket body is 1:10 to 1:

1.

4. The extended nozzle for water rocket according to claim 1 or 2 or 3, characterized in that: A parachute device is installed on the extended nozzle.

5. A water rocket comprising the extended nozzle as described in any one of claims 1-4.

6. The water rocket of claim 5, wherein: It includes a water rocket body, with an extended nozzle connected to the bottom of the body, and a parachute device installed on the extended nozzle.

7. The water rocket of claim 6, wherein: The parachute device includes a folding parachute pack, parachute lines connected to the folding parachute pack, and a parachute release mechanism installed outside the extended nozzle. The outer end of the parachute lines is connected to the outside of the extended nozzle. The parachute release mechanism includes a rollable sheet with one end connected to the outer wall of the hollow nozzle of the extended nozzle, a timer installed on the outside of the movable end of the rollable sheet, and an elastic band connected to the timer. One end of the elastic band is fixedly installed, and the timer is provided with a timing lever that can be connected to the movable end of the elastic band.

8. The water rocket of claim 7, wherein: The timer is also provided with an anti-rotation part that can rotate simultaneously with the timer lever. The anti-rotation part has a pin hole on its side wall along the radial direction. A retaining ring is provided around the anti-rotation part, and a slot is provided on the retaining ring to expose the pin hole.

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