Traction type water rocket launching device

Abstract

The utility model discloses a traction type water rocket launching device, which adopts a pure mechanical structure combining a rotary pedal and a brake cable, omits an electric control link, can realize vertical launching of a multi-stage water rocket through manual operation, and is simple in structure, convenient and fast 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 pulling type water rocket launching device. Background Technique

[0002] At present, 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 for a longer time and reach a higher altitude, it is necessary to ensure that the main rocket body and the boosters are released simultaneously during launch. Otherwise, the water rocket will lose balance and cannot take off vertically, and may even cause harm to the personnel around the launch site or property damage when the deviation is serious.

[0003] The existing patent CN202816253U discloses a parallel type water rocket launching device, which realizes the simultaneous launch of each sub-body water rocket through a launching plate to achieve the successful launch of the parent water rocket. However, this device not only has a relatively complex structure and requires the use of supporting cylinders and solenoid valves, but also the launching plate must be kept absolutely parallel to the launch pad to synchronously press down the launching sleeve. Slight deviation in actual operation will still result in non-simultaneous launch, presenting certain risks. Another example is the patent CN205649853U, which discloses a launching mechanism and a multi-stage water rocket. By fixing multiple water containers at the same level together, the water rockets at each level can be made to fall off together. However, this mechanism also requires the assistance of a motor drive for the release operation, and each water container needs to be equipped with a launching mechanism, resulting in a relatively complex structure and being prone to errors during actual operation, leading to launch failure. Content of the Utility Model

[0004] Aiming at the deficiencies of the above-mentioned existing technologies, the utility model provides a pulling type water rocket launching device, which eliminates the electric control link and can realize the vertical launch of multi-stage water rockets through manual operation. It has a simple structure, convenient operation, and is more suitable for extensive teaching demonstrations.

[0005] The utility model realizes the above object through the following technical solutions:

[0006] A pulling type water rocket launching device, comprising a launch pad and a launcher, and a brake wire is connected between the launch pad and the launcher;

[0007] A quick connector connected to each nozzle of the multi-stage water rocket is installed on the launch pad. The quick connectors are divided into a main rocket quick connector located at the center and booster quick connectors located around. An air inlet matching the inlet and outlet channels of the quick connectors is provided on the launch pad;

[0008] The launcher is hinged by a base plate and a rotating pedal. A base plate limiting platform is provided on the base plate, and a pedal limiting platform corresponding to the base plate limiting platform is provided on the rotating pedal;

[0009] The brake cable is divided into a main brake cable connected to the quick connector of the main rocket and a booster brake cable connected to the quick connector of the booster, and the main brake cable is longer than the booster brake cable;

[0010] The brake cable includes a cable sleeve, an inner wire, and an inner wire joint. The inner wire at the launch pad end is fixed to the external joint of the quick connector, and the cable sleeve at the launch pad end is limited to the top wall of the launch pad. The inner wire at the launcher end passes through the substrate limit platform and the pedal limit platform in sequence and is limited to the pedal limit platform through the inner wire joint. The cable sleeve at the launcher end is limited to the substrate limit platform. When the rotating pedal rotates relative to the substrate, the inner wire can be pulled;

[0011] A fixing rod is also installed on the substrate of the launcher. One end of the fixing rod is connected to the brake cable through a fixing sleeve, and a return spring is sleeved on the fixing rod.

[0012] Further, both the substrate and the rotating pedal are L-shaped, and they are placed opposite to each other and hinged through the short arms.

[0013] Further, handles are provided on the outer sides of the long arms of both the substrate and the rotating pedal.

[0014] Further, both the substrate limit platform and the pedal limit platform are in a comb-like structure.

[0015] Further, one end of the return spring is fixed to the launcher, and the other end is fixed to the brake cable through a fixing sleeve.

[0016] Further, the inner wires at the launch pad end are all fixed to the external joints of the quick connectors through clamps.

[0017] Compared with the prior art, the advantages and effects of the present utility model are as follows:

[0018] 1. The structure of this device is simple and the operation is convenient. The rotating pedal is organically combined with the brake cable, and the manual operation launch of the multi-stage water rocket is realized by using a pure mechanical structure, eliminating the electric control link. This not only avoids the mistakes caused by electric control but also effectively saves the production cost;

[0019] 2. Different from the prior art which strives for the synchronous launch of water rockets at each level, in this device, by setting the main brake cable to be slightly longer than the booster brake cable, 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 does not deviate when it is finally launched. The launch method of this device can better ensure the vertical lift-off of the water rocket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present utility model.

[0021] Figure 2 It is a schematic bottom structural diagram of the launch pad in the present utility model.

[0022] Figure 3 This is a side view of the launch pad in the present utility model.

[0023] Figure 4 It is Figure 1 a partial enlarged view of the position A in

[0024] Figure 5 This is a schematic structural diagram of the transmitter in the present utility model.

[0025] Drawing number identification: 1. Launch pad; 2. Transmitter; 21. Substrate; 22. Rotating pedal; 23. Substrate limit platform; 24. Pressure plate limit platform; 25. Handle; 26. Bolt; 3. Brake wire; 31. Main brake wire; 32. Booster brake wire; 33. Wire sleeve; 34. Inner wire; 35. Inner wire joint; 4. Quick connector; 41. Main rocket quick connector; 42. Booster quick connector; 5. Air inlet; 6. Fixed rod; 7. Return spring; 8. Fixed sleeve; 9. Hoop. Detailed implementation mode

[0026] The following further illustrates the present utility model in conjunction with embodiments, but the present utility model is not limited to these embodiments.

[0027] The pull-type water rocket launch device described in this embodiment, as Figure 1 and 2 shown, includes a launch pad 1 and a transmitter 2, and a brake wire 3 is connected between the launch pad 1 and the transmitter 2.

[0028] As Figure 1 shown, five quick connectors 4 connected to the nozzles of each stage of the multi-stage water rocket are installed on the launch pad 1, which are divided into a main rocket quick connector 41 located at the center and booster quick connectors 42 located around. For example, for the multi-stage water rocket shown in the utility model patent CN 216957272 U Figure 2 shown, the main rocket quick connector 41 is docked with the nozzle of the main rocket body, and the booster quick connector 42 is docked with the nozzle of the booster. The above quick connectors 4 can adopt existing conventional quick connectors or the quick connectors disclosed in the utility model patent CN 211885377 U.

[0029] As Figure 2 shown, five air inlets 5 that match the inlet and outlet channels of the main rocket quick connector 41 and the booster quick connector 42 are opened on the top wall of the launch pad 1 for inflating the multi-stage water rocket.

[0030] As Figure 4 and 5As shown in the figure, the launcher 2 includes an L-shaped substrate 21 and an L-shaped rotating pedal 22 which are placed opposite to each other, and are hinged to the short arms of both by bolts 26. One end of the short arm of the substrate 21 is provided with a comb-shaped substrate limit platform 23, and the outer side of the long arm of the rotating pedal 22 is provided with a comb-shaped pedal limit platform 24 corresponding to the substrate limit platform 23. In addition, handles 25 are provided on the outer sides of the long arms of the substrate 21 and the rotating pedal 22.

[0031] As Figure 1 shown in the figure, the brake cable 3 is divided into a main brake cable 31 connected to the main rocket quick connector 41 and a booster brake cable 32 connected to the booster quick connector 42, and the main brake cable 31 is longer than the booster brake cable 32.

[0032] As Figure 4 shown in the figure, the brake cable 3 includes a cable sleeve 33, an inner wire 34 and an inner wire joint 35. The inner wire 34 at the launch pad 1 end passes through the top wall of the launch pad 1 and is fixed to the external joint of the quick connector 4 by a hoop 9. The cable sleeve 33 at the launch pad 1 end is limited under the top wall of the launch pad 1. For example, if the quick connector structure disclosed in the utility model patent CN 211885377 U is adopted, the inner wire 34 is fixed to the outer wall of the motion switch (i.e., the outer joint) of the quick connector 2 by the hoop 9. The inner wire 34 at the launcher 2 end passes through the substrate limit platform 23 and the pedal limit platform 24 in sequence, and is limited by the inner wire joint 35 at the pedal limit platform 24. The cable sleeve 33 at the launcher 2 end is limited at the substrate limit platform 23. When the rotating pedal 22 rotates relative to the substrate 21, the inner wire 34 can be pulled.

[0033] As Figure 4 shown in the figure, a fixing rod 6 and a return spring 7 are further installed on the outer side of the short arm of the substrate 21. One end of the fixing rod 6 is fixed to five brake cables 3 through a fixing sleeve 8. The return spring 7 is sleeved on the fixing rod 6, one end of which is fixed to the substrate 21, and the other end is fixed to the brake cable 3 through the fixing sleeve 8. The fixing sleeve 8 can be formed by winding tape.

[0034] The working principle of this embodiment is as follows:

[0035] 1. First, each nozzle of the multi-stage water rocket is respectively docked with the quick connector 4 on the launch pad 1, and the rocket body is inflated through the air inlet 5 at the bottom of the quick connector 4.

[0036] 2. During launch, the operator holds the handles 25 on the launcher 2 with both hands and squeezes inward. At this time, the pedal limit platform 24 on the rotating pedal 22 and the substrate limit platform 23 on the substrate 21 will gradually move away from each other (the inner wire connectors 35 and the wire sleeves 33 are respectively restricted by the pedal limit platform 24 and the substrate limit platform 23 and will also gradually move away from each other), thereby pulling the inner wire 34. The other end of the inner wire 34 is fixed to the external connector of the quick connector 2, thus achieving the purpose of pulling down the external connector. Since the main brake wire 31 is longer than the booster pull rope 42, the main rocket quick connector 41 will be released later than the booster quick connector 42, so as to ensure that the water rocket can be vertically launched into the air;

[0037] 3. During the process of squeezing the handle 25 inward, the return spring 7 is compressed. When the handle 25 is released, the return spring 7 rebounds, thereby driving the inner wire 34 of the brake wire 3 to return to the initial state.

Claims

1. A traction-type water rocket launching device, characterized in that: It comprises a launching platform (1) and a launching device (2), wherein a brake line (3) is connected between the launching platform (1) and the launching device (2); The launching platform (1) is provided with a quick connector (4) connected to each nozzle of the multi-stage water rocket, the quick connector (4) is divided into a main rocket quick connector (41) located in the center and booster quick connectors (42) located at the periphery, and an air inlet (5) matching the inlet and outlet channels of the quick connector (4) is provided on the launching platform (1); The transmitter (2) is formed by hingedly connecting a base plate (21) and a rotating pedal (22); a base plate limiting platform (23) is provided on the base plate (21); and a pedal limiting platform (24) corresponding to the base plate limiting platform (23) is provided on the rotating pedal (22); The brake line (3) is divided into a main brake line (31) connected to the main rocket quick connector (41) and a booster brake line (32) connected to the booster quick connector (42), and the main brake line (31) is longer than the booster brake line (32); The brake line (3) comprises a line sleeve (33), an inner line (34) and an inner line connector (35); the inner line (34) at the launch platform (1) end is fixed to the outer connector of the quick connector (4); the line sleeve (33) at the launch platform (1) end is limited to the top wall of the launch platform (1); the inner line (34) at the launcher (2) end successively passes through the base plate limit platform (23) and the pedal limit platform (24) and is limited to the pedal limit platform (24) through the inner line connector (35); the line sleeve (33) at the launcher (2) end is limited to the base plate limit platform (23); when the rotating pedal (22) rotates relative to the base plate (21), the inner line (34) can be pulled; A fixing rod (6) is also mounted on the base plate (21) of the transmitter (2), one end of the fixing rod (6) is connected to the brake line (3) via a fixing sleeve (8), and a return spring (7) is sleeved on the fixing rod (6).

2. A traction-type water rocket launching device according to claim 1, characterized in that: The base plate (21) and the rotating pedal (22) are both L-shaped, and are placed opposite to each other and hinged via a short arm.

3. A pull-type water rocket launcher according to claim 2, characterized in that: The base plate (21) and the rotating pedal (22) are both provided with handles (25) on the outer sides of the long arms.

4. A traction-type water rocket launching device according to claim 1, characterized in that: The base plate limiting platform (23) and the pedal limiting platform (24) both have a comb-shaped structure.

5. A pull-type water rocket launcher according to claim 1, characterized in that: One end of the return spring (7) is fixed on the transmitter (2), and the other end is fixed to the brake line (3) through a fixing sleeve (8).

6. A pull-type water rocket launcher according to claim 1, characterized in that: The inner wires (34) at the end of the transmitting platform (1) are fixed to the outer connector of the quick connector (4) through a clamp (9).

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