Rocker type water rocket launching device

Abstract

The utility model discloses a rocker type water rocket launching device, which adopts a pure mechanical structure in which a rotating shaft is matched with a rocker, omits an electric control link, can realize vertical launching of a multi-stage water rocket through manual operation, and is simple in structure, convenient to operate and more suitable for being widely used in teaching demonstration.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching demonstration tools, in particular to a rocker type water rocket launching device. Background Art

[0002] Currently, the common multi-stage booster water rocket is mainly composed of a main rocket body and boosters around it. In order to make the water rocket fly longer and at a higher altitude, the main rocket body and the booster must be released at the same time during launch. Otherwise, the water rocket will lose balance and cannot take off vertically. If the deviation is serious, it may also injure people around the launch or cause property damage.

[0003] Existing patent CN202816253U discloses a parallel water rocket launcher, which uses a launch plate to simultaneously launch each daughter water rocket to achieve the successful launch of the parent water rocket. However, the device is not only complex in structure, but also requires the use of a supporting cylinder and a solenoid valve. In addition, the launch plate must be kept absolutely parallel to the launch platform to achieve synchronous downward pressure on the launch sleeve. In actual operation, a slight deviation will still lead to failure to launch synchronously, which poses a certain risk. For example, patent CN205649853U discloses a launch mechanism and a multi-stage water rocket. By fixing multiple water containers of the same level together, the water rockets of each level can be dropped together. However, the mechanism also needs to be driven by a motor to perform the release operation, and each water container must be equipped with a launch mechanism. The structure is relatively complex, and mistakes are prone to occur during actual operation, resulting in launch failure. Utility Model Content

[0004] In view of the deficiencies of the above-mentioned prior art, the utility model provides a rocker-type water rocket launching device, which adopts a purely mechanical structure in which a rotating shaft and a rocker are coordinated, eliminating the electronic control link, and can achieve vertical launching of multi-stage water rockets through manual operation. It has a simple structure and is easy to operate, and is more suitable for extensive teaching demonstration use.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A rocker-type water rocket launcher comprises a launch platform, on which a quick connector connected to each nozzle of a multi-stage water rocket is installed, wherein the quick connector is divided into a main rocket quick connector located in the center and a booster quick connector located at the periphery;

[0007] A rotating shaft is provided between the two side walls under the launch platform, and a main pull rope connected to the main rocket quick connector and a booster pull rope connected to the booster quick connector are wound around the rotating shaft, and the main pull rope is longer than the booster pull rope. One end of the main pull rope and the booster pull rope are both fixed on the rotating shaft, and the other end thereof passes through the top wall of the launch platform and is connected to the external connector of the corresponding quick connector;

[0008] A return spring is sleeved on one end of the rotating shaft, one end of the return spring is fixed to the side wall of the launching platform, and the other end is fixed to the rotating shaft;

[0009] The other end of the rotating shaft passes through the launching platform and is connected to a rocker fixed on the side wall. A limit device is provided at the tail end of the rocker. The rocker can drive the rotating shaft to rotate, tighten the main pull rope and the booster pull rope, and then pull the outer joint of the quick connector.

[0010] An air inlet matching the inlet and outlet passage of the quick connector is also provided on the top wall of the launch platform.

[0011] Furthermore, the limiting device includes a blocking rod and a positioning pin, the upper end of the blocking rod is fixed to the side wall of the launch platform through a rotating shaft, and the positioning pin can be inserted into a positioning hole on the side wall of the launch platform located at the lower right side of the blocking rod.

[0012] Furthermore, the return spring is fixed to the rotating shaft through a nut.

[0013] Furthermore, the main pull rope and the boost pull rope are both fixed to the outer joint of the quick connector through a clamp.

[0014] Furthermore, the main pull rope and the boost pull rope are both steel wire ropes.

[0015] Compared with the prior art, the advantages and effects of the utility model are:

[0016] 1. This device has a simple structure and convenient operation. It saves the electronic control link and adopts a purely mechanical structure with a rotating shaft and a rocker to realize the manual operation and launch of a multi-stage water rocket. It not only avoids the mistakes caused by electronic control, but also effectively saves the production cost.

[0017] 2. Unlike the prior art that strives to launch water rockets of various levels simultaneously, this device sets the main pull rope to be slightly longer than the booster pull rope, so that the main rocket will be released later than the booster. Even if the boosters cannot be released synchronously, it can ensure that the main rocket will not deviate during the final launch. The launch method of this device can better ensure the vertical launch of the water rocket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model.

[0019] Figure 2 The structure of the utility model is shown in FIG. Figure 1 .

[0020] Figure 3 The structure of the utility model is shown in FIG. Figure 2 .

[0021] Figure 4 It is a top view of the utility model.

[0022] Figure 5 The working principle of the utility model is shown in FIG. Figure 1 .

[0023] Figure 6 The working principle of the utility model is shown in FIG. Figure 2 .

[0024] Figure number identification: 1. Launch pad; 2. Quick connector; 21. Main rocket quick connector; 22. Booster quick connector; 3. Rotating shaft; 41. Main pull rope; 42. Booster pull rope; 5. Return spring; 6. Rocker; 7. Air inlet; 8. Stop rod; 9. Positioning pin; 10. Nut; 11. Clamp. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0026] The rocker type water rocket launching device described in this embodiment is as follows Figure 1 and 2 As shown, it includes a launch platform 1, on which are mounted five quick connectors 2 connected to the nozzles of the multi-stage water rocket, which are divided into a main rocket quick connector 21 located in the center and booster quick connectors 22 located around. For example, the utility model patent CN 216957272 U Figure 2 In the multi-stage water rocket shown, the main rocket quick connector 21 is connected to the nozzle of the main rocket body, and the booster quick connector 22 is connected to the nozzle of the booster. The above-mentioned quick connector 2 can adopt an existing conventional quick connector, or adopt the quick connector disclosed in the utility model patent CN 211885377 U.

[0027] like Figure 1 , 3 As shown in Figures 4 and 5, a rotating shaft 3 is provided between the lower two side walls of the launch platform 1, and five pull ropes made of steel wire are wound around the rotating shaft 3, specifically a main pull rope 41 connected to the main rocket quick connector 21 and four booster pull ropes 42 connected to the booster quick connector 22, and the main pull rope 41 is longer than the booster pull rope 42; one end of the main pull rope 41 and the booster pull rope 42 are both fixed on the rotating shaft 3, and the other end thereof passes through the top wall of the launch platform 1 and is fixed to the corresponding five external joints of the quick connectors 2 through the clamp 11. For example: if the quick connector structure disclosed in the utility model patent CN 211885377 U is adopted, the five pull ropes are respectively fixed to the outer wall of the motion switch (i.e., the external joint) of the quick connector 2 through the clamp 11.

[0028] like Figure 3 and 4 As shown, an air inlet 7 matching the inlet and outlet channels of the main rocket quick connector 21 and the booster quick connector 22 is also provided on the top wall of the launch pad 1 for inflating the multi-stage water rocket.

[0029] like Figure 1 , 3 As shown in Figures 4 and 5, a return spring 5 is sleeved on the left end of the rotating shaft 3, the outer end of the return spring 5 is fixed to the side wall of the launching platform 1, and the inner end thereof is fixed to the rotating shaft 3 by a nut 10; the right end of the rotating shaft 3 passes through the side wall of the launching platform 1 and is connected to a rocker 6 fixed on the side wall, and a limiting mechanism is provided on the right outer wall of the launching platform 1 and at the tail end of the rocker 6, and the rocker 6 can drive the rotating shaft 3 to rotate, tighten the main pull rope 41 and the boost pull rope 42, and then pull the outer joints of each quick connector 2.

[0030] like Figure 5 and 6 As shown, the limiting mechanism includes a blocking rod 8 and a positioning pin 9 arranged at the tail end of the rocker 6. The upper end of the blocking rod 8 is fixed to the side wall of the launch platform 1 through the rotating shaft 3, and the positioning pin 9 can be inserted into the positioning hole opened in the side wall of the launch platform 1.

[0031] The working principle of this embodiment is as follows:

[0032] 1. After each nozzle of the multi-stage water rocket is docked with the quick connector 2 on the launch pad 1, the rocket body is inflated through the air inlet 7 at the bottom of the quick connector 2;

[0033] 2. After the inflation is completed, the rocker 6 is rotated counterclockwise upward, and the reset spring 5 is twisted. At this time, the five pull ropes are all in a relaxed state. The upper end of the stopper 8 is used to support the rear end of the rocker 6, and the stopper 8 is supported by the positioning pin 9, so as to limit the rocker 6 to prevent the rotating shaft 3 from rotating (such as Figure 5 shown);

[0034] 3. During launch, the operator can pull the positioning pin 9 out of the positioning hole through the rope, and the rocker 6 rotates downward clockwise under the torsional force of the spring 5. At the same time, the five pull ropes wrapped around the rotating shaft 3 are tightened at the same time, thereby pulling the outer joint of the quick connector 2 downward. Since the main pull rope 41 is longer than the booster pull rope 42, the main rocket quick connector 21 will be released later than the booster quick connector 22, thereby ensuring that the water rocket can be launched vertically.

Claims

1. A rocker-type water rocket launching device, comprising a launching platform (1), characterized in that: The launching platform (1) is provided with a quick connector (2) connected to each nozzle of the multi-stage water rocket, and the quick connector (2) is divided into a main rocket quick connector (21) located in the center and booster quick connectors (22) located at the periphery; A rotating shaft (3) is provided between the lower two side walls of the launch platform (1), and a main pull rope (41) connected to the main rocket quick connector (21) and a booster pull rope (42) connected to the booster quick connector (22) are respectively wound around the rotating shaft (3), and the main pull rope (41) is longer than the booster pull rope (42), one end of the main pull rope (41) and the booster pull rope (42) are both fixed on the rotating shaft (3), and the other ends thereof pass through the top wall of the launch platform (1) and are connected to the external connector of the corresponding quick connector (2); A return spring (5) is sleeved on one end of the rotating shaft (3); one end of the return spring (5) is fixed to the side wall of the launching platform (1), and the other end is fixed to the rotating shaft (3); The other end of the rotating shaft (3) passes through the launching platform (1) and is connected to a rocker (6) fixed on the side wall. A limit device is provided at the tail end of the rocker (6). The rocker (6) can drive the rotating shaft (3) to rotate and tighten the main pull rope (41) and the auxiliary pull rope (42), thereby pulling the outer joint of the quick connector (2); An air inlet (7) matching the inlet and outlet channel of the quick connector (2) is also provided on the top wall of the launch platform (1).

2. A rocker type water rocket launching device according to claim 1, characterized in that: The limiting device comprises a blocking rod (8) and a positioning pin (9); the upper end of the blocking rod (8) is fixed to the side wall of the launch platform (1) via a rotating shaft; the positioning pin (9) can be inserted into a positioning hole on the side wall of the launch platform (1) located at the lower right side of the blocking rod (8).

3. A rocker type water rocket launching device according to claim 1, characterized in that: The return spring (5) is fixed on the rotating shaft (3) via a nut (10).

4. A rocker type water rocket launching device according to claim 1, characterized in that: The main pull rope (41) and the boost pull rope (42) are both fixed to the outer joint of the quick connector (2) via a clamp (11).

5. A rocker type water rocket launching device according to claim 1, characterized in that: The main pull rope (41) and the boost pull rope (42) are both steel wire ropes.

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