Lateral inflatable water rocket launcher suitable for rocket body with nozzle
By designing a side-inflated water rocket launcher suitable for a nozzle-equipped rocket body, the problems of high production costs and poor launch results were solved, achieving efficient and low-cost production of the launcher and accurate and rapid launch results.
Patent Information
- Application Number
- CN202512041868.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-17
AI Technical Summary
Existing model water rocket launchers have high production costs, poor launch performance, and are not suitable for rockets with nozzles. The inflation method is inconvenient, resulting in a large overall space occupation of the launcher and dispersed launch thrust, making it difficult to meet the needs of different launch effects.
A side-inflated water rocket launcher suitable for nozzle-equipped rocket bodies was designed. The launcher body is made of one piece and includes a horizontal platform, an inflation section, a vertical sidewall, a nozzle docking section, and a pivot section. The seal is achieved through side inflation and nozzle docking, which shortens the launcher length, concentrates the force release, and adapts to different nozzle inner diameters to adjust the launch effect.
It reduced mold and material costs, improved launch accuracy and acceleration, saved packaging and transportation costs, and achieved diverse launch effects and accurate launch direction.
Smart Images

Figure CN121540008A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of model water rocket technology, and specifically to a side-inflated water rocket launcher suitable for a nozzle-equipped rocket body. Background Technology
[0002] Model water rocket launchers are becoming increasingly popular among primary and secondary school students and their parents, leading to a growing market. However, the production of assembly parts and bases for existing model water rocket launchers typically requires more than three sets of molds, each with significant costs. Furthermore, after the parts are formed, they need to be manually assembled to create a complete set for sale to consumers. Since some parts may have similar shapes but differ slightly from left to right, this can easily result in incorrect shipments, leading to a poor customer experience and high costs associated with returns and rework.
[0003] Moreover, traditional water rocket launchers typically use a bottom inflation method, which requires a large space to be reserved at the bottom of the launcher for inflation, making it inconvenient for the overall assembly of the launcher.
[0004] To address this, the inventor developed an invention patent, "Side-Inflatable Water Rocket Launcher," with application number 2025100596658, which solved the problems of inflation and large overall space occupation of traditional water rocket launchers. However, this launcher is only suitable for launching rockets without nozzles. It uses a sealing ring on the outer wall of the bottom of the rocket body insertion tube to seal with the inner wall of the nozzle-less rocket bottle. A large number of water rockets on the market still use nozzles, such as the water rocket nozzle disclosed in patent number CN201630314950.1, where the rocket bottle is connected to the nozzle to form the rocket body. Moreover, to meet different launch effects, the nozzle itself has various orifice diameter specifications; for example, a larger orifice diameter results in a shorter energy evacuation time, while a smaller orifice diameter results in a longer energy evacuation time. The aforementioned launcher is clearly unsuitable for scenarios with nozzles and cannot meet the needs of different launch effects.
[0005] In addition, the long tube of the launcher body makes the overall mold cost of the product very high, and the packaging cost of the product is also high, resulting in a high overall product cost. Moreover, since the bottle opening is on the outside after the arrow body is inserted, the water disperses in all directions when the pressure is released, and it is difficult to concentrate the thrust force on the arrow body, resulting in a smaller burst force at the moment of launch. Summary of the Invention
[0006] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a side-inflated water rocket launcher suitable for a nozzle-equipped rocket body, solving the problems of high production cost and poor launch effect of existing water rocket launchers.
[0007] The technical solution adopted in this invention is as follows: a side-inflated water rocket launcher suitable for a nozzle-equipped rocket body, comprising an integrally formed launcher body, the launcher body having a transverse platform, a hollow cylindrical nozzle docking part formed upward on the middle of the upper surface of the transverse platform for the water rocket body nozzle to be inserted internally, an inflation part protruding from one side wall of the transverse platform, an inflation channel communicating with the interior of the nozzle docking part formed in the inflation part and the interior of the transverse platform; a pair of vertical sidewalls formed upward on both sides of the transverse platform, the height of the vertical sidewalls being higher than the nozzle docking part; a widening part formed at the top of each of the vertical sidewalls, each widening part having a cylindrical through hole perpendicular to the axial direction of the nozzle docking part for inserting a limiting insert; a notch formed on the inner side of each of the two widening parts communicating with the cylindrical through hole, the space between the two notches forming for the water rocket body nozzle to pass through.
[0008] A radial boss is also formed on the outer wall of the nozzle docking part, and a first pivot hole is provided on the radial boss. The radial platform and the first pivot hole are used to install the locking release component of the water rocket.
[0009] A pivot portion for connection to the transmitter base is formed on the lower surface of the transverse platform, and a second pivot hole is provided on the pivot portion.
[0010] The lower part of the pivot is arc-shaped and has angle positioning teeth. The launch angle is better positioned by the angle positioning teeth and the positioning strip on the launcher base.
[0011] A wire hole is also formed below the horizontal platform of the transmitter body and at the root of the upper end of the pivot.
[0012] The top surfaces of the two widened portions extend toward each other to form a connecting surface, and the connecting surface has a circular hole through which the nozzle and flange of the water-supply rocket pass.
[0013] The inner diameter of the nozzle docking section decreases sequentially from top to bottom.
[0014] The present invention, through the above structure, can be used for launching water rockets with nozzles. After the nozzle is connected to the ordinary bottle body, the nozzle and its sealing ring are sealed with the nozzle docking part to achieve docking, thereby adapting to the launch of water rockets with nozzles. Moreover, according to the user's needs, nozzles with different nozzle inner diameters can be replaced to obtain different launch speeds and durations, etc. Furthermore, a guide tube can also be connected at the air channel outlet at the bottom of the nozzle docking part to serve as a launch guide. Furthermore, the length and volume of the launcher body are significantly reduced, shortening it by about half compared to the original long arrow body insertion pipe, thus saving a significant amount of mold and manufacturing material costs, and also helping to save on subsequent packaging and transportation costs. When in use, the arrow body nozzle is inside the nozzle docking part, and the force discharge is concentrated inside. At the moment of launch, the thrust of the nozzle docking part on the arrow body is more concentrated, and the launch thrust loss is small, thereby making the water rocket launch acceleration greater and achieving the effect of accurate launch direction. In this invention, the radial boss connecting the locking release component is moved up, so that the pivot of the locking release component is also moved up and closer to the center. With the overall size of the locking release component remaining unchanged, it is easier to pull the lower end of the locking release component and to release the launch more easily. Attached Figure Description
[0015] Figure 1 , Figure 2 This is a three-dimensional structural diagram of the transmitter body of the present invention; Figure 3 This is a cross-sectional view of the transmitter body of the present invention. Detailed Implementation
[0016] like Figures 1-3 As shown, the present invention relates to a side-inflated water rocket launcher with a nozzle and a rocket body. The launcher body 1 comprises an integrally formed launcher body 1, which has a transverse platform 11. A hollow cylindrical nozzle docking portion 12 is formed on the upper surface of the transverse platform 11, allowing the water rocket body nozzle to be inserted internally. The water rocket body is inserted into the nozzle docking portion 12, and a sealing ring is installed on the outer wall of the nozzle to seal it against the inner wall of the nozzle docking portion 12. An inflation portion 13 is also formed protruding from one side wall of the transverse platform 11. An inflation channel 131 communicating with the interior of the nozzle docking portion 12 is formed inside the inflation portion 13 and the transverse platform 11. A pair of vertical sidewalls 14 are formed on both sides of the horizontal platform 11 facing upwards, and the height of the vertical sidewalls 14 is higher than that of the nozzle docking part 12. That is, the nozzle docking part 12 is completely recessed and lower than the vertical sidewalls 14. In this way, the length and volume of the launcher body 1 are greatly reduced, shortening it by about 2 / 3 compared to the long arrow body insertion pipe in the prior art. This saves a lot of mold cost and manufacturing material cost, and also helps to save subsequent packaging and transportation costs. At the same time, compared with the original launch method where the bottle mouth is outside the arrow body insertion part, the water sprayed at the moment of launch will be dispersed in all directions, the leakage force is relatively dispersed and the reverse thrust is not concentrated, resulting in a large loss of launch thrust. In the present invention, the nozzle is inside the nozzle docking part 12, the leakage force is concentrated inside, the reverse thrust of the nozzle docking part 12 on the arrow body is more concentrated at the moment of launch, the loss of launch thrust is small, thus making the water rocket launch acceleration greater and achieving the effect of accurate launch direction. The top of the vertical sidewall 14 is formed with a widened portion 141, and each of the two widened portions 141 has a cylindrical through hole 142 formed in it, which is perpendicular to the axial direction of the nozzle docking portion 12 and is used for inserting the limiting insert. The inner side of the two widened portions 141 is formed with a notch 143 that communicates with the cylindrical through hole 141, and a space is formed between the two notches 143 for the water rocket body nozzle to pass through. A radial boss 121 is also formed on the outer wall of the nozzle docking portion 12. The radial boss 121 is provided with a first pivot hole 122. The radial platform 121 and the first pivot hole 122 are used to install the locking release component of the water rocket (not shown in the figure, but the specific structure is the same as the locking release component in the prior art patent application with application number 2025100596658). Compared with the original method of directly extending the radial boss on the transverse platform to connect the locking release component, in this invention, the radial boss 121 connecting the locking release component is moved upward, so that the pivot of the locking release component is also moved upward and closer to the center. With the overall size of the locking release component remaining unchanged, it is easier to pull the lower end of the locking release component with a rope or press it with your hand, and it is easier to release and launch.
[0017] A pivot part 15 is formed on the lower surface of the transverse platform 11, which can be connected to the transmitter base (not shown in the figure). A second pivot hole 151 is provided on the pivot part 15. The pivot part 151 is bolted to the pivot seat on the transmitter base. The launch angle of the transmitter body can be adjusted and then locked with bolts. The lower part of the pivot 15 is arc-shaped and is provided with an angle positioning tooth 152. The launch angle is better positioned by the angle positioning tooth 152 and the positioning strip on the launcher base.
[0018] Below the transverse platform 11 of the launcher body 1 and at the root of the upper end of the pivot 15, there is also a wire hole 153 for the release cable to pass through. After the cable passes through, it is connected to the lower end of the locking release component. When pulled, the locking release component can be opened, thereby launching the water rocket.
[0019] A rotatable limiting insert (not shown in the figure) is inserted through the cylindrical through hole 142, and the rotatable limiting insert has a cutting recess in the middle that corresponds to the notch. When the rotatable limiting insert is in the initial position, the cutting recess faces downward, i.e., towards the horizontal platform, and the limiting insert protrudes from the notch, thereby restricting the flange of the water rocket nozzle downward, thus performing the inflation and pressurization operation. When it is to be released, the limiting insert will rotate under the upward impact force of the rocket body so that the cutting recess faces the notch, and the limiting insert loses its restriction on the flange of the rocket nozzle, allowing the rocket body to be launched. In this embodiment, the rotatable limiting insert, locking release component, launcher base, and other prior art components disclosed in the invention patent application "Side-Inflatable Water Rocket Launcher" with application number 2025100596658 are omitted. The technical solution of this invention is an improvement on the main structure of the launcher based on the solution of that invention patent application.
[0020] The top surfaces of the two widened portions 141 extend toward each other to form a connecting surface 144, and the connecting surface is provided with a circular hole 145 through which the nozzle and flange of the water supply rocket pass. The connecting surface 144 makes the structure of the launcher body 1 more stable. The circular hole 145 and the notch 143 of the widened portion 141 together form the space through which the nozzle and flange of the water supply rocket pass. The nozzle docking part 12 is divided into three sections, with the inner diameter decreasing from top to bottom, and a guide cone surface is formed at the joint, which facilitates the docking of the arrow body and nozzle and makes the docking of the arrow body and nozzle tighter.
[0021] In summary, the present invention, through the above structure, has the following advantages: The present invention, through the above structure, can be used for launching water rockets with nozzles. After the nozzle is connected to the ordinary bottle body, the nozzle and its sealing ring are sealed with the nozzle docking part to achieve docking, thereby adapting to the launch of water rockets with nozzles. Moreover, according to the user's needs, nozzles with different nozzle inner diameters can be replaced to obtain different launch speeds and durations, etc. Furthermore, a guide tube can also be connected at the air channel outlet at the bottom of the nozzle docking part to serve as a launch guide. Furthermore, the length and volume of the launcher body are significantly reduced, shortening it by about half compared to the original long arrow body insertion pipe, thus saving a significant amount of mold and manufacturing material costs, and also helping to save on subsequent packaging and transportation costs. When in use, the arrow body nozzle is inside the nozzle docking part, and the force discharge is concentrated inside. At the moment of launch, the thrust of the nozzle docking part on the arrow body is more concentrated, and the launch thrust loss is small, thereby making the water rocket launch acceleration greater and achieving the effect of accurate launch direction. In this invention, the radial boss connecting the locking release component is moved up, so that the pivot of the locking release component is also moved up and closer to the center. With the overall size of the locking release component remaining unchanged, it is easier to pull the lower end of the locking release component and to release the launch more easily.
[0022] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and 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 side-blowing water rocket launcher with a nozzle suitable for a rocket body, comprising a launcher body, characterized in that: The launcher body has a horizontal platform. A hollow cylindrical nozzle docking part is formed on the upper center of the horizontal platform, which is used to insert the nozzle of the water rocket body. An inflation part is also formed on one side wall of the horizontal platform. An inflation channel communicating with the nozzle docking part is formed inside the inflation part and the horizontal platform. A pair of vertical sidewalls are formed on both sides of the horizontal platform, and the height of the vertical sidewalls is higher than that of the nozzle docking part. The top of the vertical sidewalls is formed with a widening part. Each of the two widening parts has a cylindrical through hole that is perpendicular to the axis of the nozzle docking part and is used to insert a limiting strip. The inner side of the two widening parts has a notch that communicates with the cylindrical through hole. The space between the two notches is a space for the nozzle of the water rocket body to pass through.
2. The side-mounted gas-assisted water rocket launcher suitable for use with a nozzle-equipped arrow body according to claim 1, characterized in that: A radial boss is also formed on the outer wall of the nozzle docking part, and a first pivot hole is provided on the radial boss. The radial platform and the first pivot hole are used to install the locking release component of the water rocket.
3. The side-mounted gas-assisted water rocket launcher suitable for use with a nozzle-equipped arrow body of claim 1, wherein: A pivot portion that can be connected to the transmitter base is formed on the lower surface of the transverse platform, and a second pivot hole is provided on the pivot portion.
4. The side-firing water rocket launcher suitable for use with a nozzle-equipped arrow body of claim 3, wherein: The lower part of the pivot is arc-shaped and has angular positioning teeth.
5. A side-firing water rocket launcher suitable for use with a nozzle-equipped arrow body according to claim 3 or 4, characterised in that: A wire hole is also formed below the horizontal platform of the transmitter body and at the root of the upper end of the pivot.
6. The side-inflated water rocket launcher with nozzle body according to claim 1, characterized in that: The top surfaces of the two widened portions extend toward each other to form a connecting surface, and the connecting surface has a circular hole through which the nozzle and flange of the water-supply rocket pass.
7. The side-inflated water rocket launcher with nozzle body according to claim 1, characterized in that: The inner diameter of the nozzle docking section decreases sequentially from top to bottom.
Citation Information
Patent Citations
Nozzle (Water Rocket)
CN303950946S