Large-volume split-type water rocket parachute chamber and water rocket

Abstract

The present invention relates to a large-capacity split-type water rocket parachute bay, wherein: the bay has a bullet-shaped bay body, which is formed by a first shell body and a second shell body that can be opened and closed and docked; a connecting portion connected to the top of the water rocket body is formed at the center of the bottom surface of the bay body; a surrounding rubber band is connected to the bottom of the side wall of the first shell body; a mounting recess recessed toward the inside of the shell body is also formed in the middle of the second shell body, and a rubber band connection and release device is provided in the mounting recess, which can be connected to the movable end of the surrounding rubber band and release the movable end of the surrounding rubber band when appropriate. After the bay of the present invention adopts the above structure, the bay body is opened in a side-opening or split-opening manner, and its opening area after opening is maximized, and the internal space of the bay body is completely exposed, and the loads in the bay body, including parachutes, can be opened smoothly, and there will be no situation where the parachute cannot be opened.

Description

Technical field:

[0001] The invention relates to a water rocket which can be used as a teaching tool or a toy, in particular to a large-capacity split-type water rocket parachute chamber and the water rocket. Background technology:

[0002] A water rocket is also known as a pneumatic water jet rocket or a water-propelled rocket. Its principle is to inject gas into a closed rocket body filled with a certain amount of water. As the air pressure in the rocket body increases, the bottle stopper at the bottom is opened, causing the water to spray out quickly and giving the rocket body an upward reverse thrust. The rocket body rises and is shot out like a rocket, hence the name water rocket.

[0003] Generally, the arrow body and arrow of a water rocket are made of plastic materials. In the past, water rockets often break when they fall rapidly, hit other objects or even injure others. It is impossible to guarantee the reuse of the water rocket itself or the safety of the experiment. For this reason, some designers have designed a water rocket with a parachute, that is, a parachute is connected to the upper end of the arrow body, and then the arrow is gently placed on the outside of the arrow body (i.e., not tightly connected). When the water rocket flies to a high point, it tilts to make the arrow fall and release the parachute. However, the probability of the parachute opening in this structure is not high, and it is impossible to achieve low-angle launch.

[0004] The inventor has developed a variety of water rocket parachute chambers. The opening methods of these chambers are that the movable part of the chamber moves along the axis or flight direction of the water rocket to open. The maximum opening area of ​​the chamber when it is opened is only the size of the cross-section of the chamber, and then the parachute in the chamber is opened. This method determines that the volume of the chamber cannot be too large and too deep, otherwise the parachute in the chamber cannot be opened, and other load items cannot be added. In addition, this type of chamber is scattered after use, and it is inconvenient to reassemble and reuse it, which brings certain troubles to users. Summary of the invention:

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a large-volume split-type water rocket parachute chamber.

[0006] The technical solution adopted by the present invention to achieve its purpose is: a large-volume split-type water rocket parachute capsule, wherein: the capsule has a bullet-shaped capsule body, which is formed by a first shell body and a second shell body that can be opened and closed by docking, and one side edge of the first shell body is connected to the second shell body by an elastic connecting rib, and the other side edge is respectively provided with a relative limit buckle; the elastic connecting rib makes the first shell body and the second shell body open in a normal state;

[0007] A connection portion connected to the top of the water rocket body is formed at the center of the bottom surface of the warehouse body, and the connection portion includes a semicircular through hole formed at the center of the bottom surface of the first shell body and an arc-shaped notch formed at the bottom surface of the second shell body, wherein a semicircular groove is formed on the inner side of the hole wall of the semicircular through hole of the first shell body; an arc-shaped groove opposite to the semicircular groove is formed inside the arc-shaped notch of the second shell body;

[0008] A surrounding rubber band is connected to the bottom of the side wall of the first shell; a mounting recess recessed toward the inside of the shell is also formed in the middle of the second shell, and a rubber band connecting and releasing device is provided in the mounting recess. The rubber band connecting and releasing device can be connected to the movable end of the surrounding rubber band and release the movable end of the surrounding rubber band when appropriate.

[0009] Furthermore, at least one group of first rubber band holes is provided on the first shell, at least one second rubber band hole is provided on the second shell, and a rubber band buckle protruding into the warehouse body is provided on the inner wall of the second shell and next to the second rubber band hole. A pre-tightening rubber band is connected to the spacing part between each group of first rubber band holes, and the other end of the pre-tightening rubber band crosses the elastic connecting ribs between the first shell and the second shell, passes through the second rubber band hole, enters the second shell, and is buckled with the rubber band buckle.

[0010] A group of third rubber band holes is also opened on the side wall of the bottom of the first shell, and the spacing parts of the third rubber band holes are connected to the fixed ends of the surrounding rubber bands.

[0011] A pair of opposite rubber limit strips are respectively formed on the outside of the top of the first shell and the second shell, and a rubber limit groove is formed between the rubber limit strips, or the rubber limit groove can be directly formed on the top surface of the first shell and the second shell; and an inflection point protrusion is also protruded at the outer wall of the first shell and the end of the rubber limit strip.

[0012] An arc-shaped positioning strip and an arc-shaped positioning groove are respectively formed on the top butting surfaces of the first shell and the second shell.

[0013] The rubber band connection and release device is a mechanical pull-back timer, which has a handle that can be connected to the movable end of the rubber band and can be rotated to adjust the timing length. It also has a stopper that prevents the timer from timing when the pull-back spring is tightened in the initial state, and a pin hole is provided on the stopper.

[0014] The installation recess where the rubber band connection and release device is located is inclined relative to the axis of the warehouse body.

[0015] Both sides of the installation recess are also provided with tie holes for the tie to pass through.

[0016] The outer wall of the semicircular through hole of the first shell is also formed with a limited step surface.

[0017] The present invention also provides a water rocket, which includes the above-mentioned large-volume split-type water rocket parachute chamber; the top of the water rocket body adopts the mouth of a beverage bottle, and the mouth of the bottle is fixedly connected to the connecting part at the bottom of the chamber body.

[0018] After the parachute warehouse of the present invention adopts the above structure, the warehouse body adopts a bullet-like shape, which matches the shape of the water rocket. The length of the warehouse body can be lengthened according to the needs of loading items so that its volume meets the use requirements, and the opening method of the warehouse body is changed to side opening or double opening. The opening area after opening is maximized, and the internal space of the warehouse body is almost completely exposed. The loads in the warehouse body, including parachutes, can be opened smoothly, and there will be no situation where the parachute cannot be opened.

[0019] Therefore, the umbrella compartment of the present invention has stronger practicality and DIY personalized fun, and its secondary assembly is simpler and more convenient. Description of the drawings:

[0020] Figure 1 , Figure 2 This is a state diagram of the umbrella compartment of the present invention after it is opened;

[0021] Figure 3 , Figure 4 This is a schematic diagram of the parachute compartment being closed and the rubber band being wound;

[0022] Figure 5 It is a schematic diagram of the structure of the timer and pins. Specific implementation method:

[0023] The present invention is further described below in conjunction with specific embodiments and drawings.

[0024] like Figure 1-Figure 4 As shown, a large-volume split-type water rocket parachute capsule of the present invention, wherein: the capsule has a bullet-shaped capsule body 1, the main body of the capsule body 1 is in a hollow cylindrical shape, and the top of the capsule body 1 is in a bullet-shaped shape; the capsule body 1 is formed by a first shell body 11 and a second shell body 12 that can be opened and closed and connected together. In this embodiment, the contact surfaces of the first shell body 11 and the second shell body 12 are located in the same axial plane as the longitudinal axis of the capsule body;

[0025] One side edge of the first shell 11 and the second shell 12 is connected by an elastic connecting rib 101, and the other side edge is respectively provided with a relative limit buckle 102; the elastic connecting rib 101 makes the first shell 11 and the second shell 12 in an open state under normal conditions; in this embodiment, the first shell 11, the second shell 12 and the elastic connecting rib 101 are integrally injection molded in an open state in the mold, so that the molded warehouse body is in an open state under normal conditions and can be opened and closed around the elastic connecting rib 101. When the external closing force disappears, the first shell 11 and the second shell 12 will return to the open state under the elastic action of the elastic connecting rib 101; the limit buckle 102 facilitates the first shell 11 and the second shell 12 to be accurately aligned and docked together;

[0026] A connecting portion 13 connected to the top of the water rocket body is formed at the center of the bottom surface of the warehouse body 1, and the connecting portion 13 includes a semicircular through hole 131 formed at the center of the bottom surface of the first shell 11 and an arc-shaped notch portion 132 formed at the bottom surface of the second shell 12, wherein a semicircular groove 133 is formed on the inner side of the hole wall of the semicircular through hole 131 of the first shell 11. In this embodiment, a limited step surface 134 is also formed on the outer wall of the semicircular through hole 131 of the first shell 11; an arc-shaped groove 135 opposite to the semicircular groove 133 is formed inside the arc-shaped notch portion 132 of the second shell 12; utilizing the semicircular through hole 131 of the first shell 11 The arc-shaped card slot 133 is connected with the convex ring at the bottle mouth of the top of the water rocket body, and then the bottle mouth of the water rocket is clamped and fixed with the bottom of the first shell 11 by a hoop or a cable tie through the limiting step surface 134 (the cable tie can be tied in an inclined shape relative to the bottle mouth), or the bottle cap can be connected with the bottle mouth inside the warehouse body to press the connecting part 13 and the flange of the bottle mouth, so that the first shell 11 is connected and fixed with the water rocket body; the second shell 12 is movable relative to the water rocket body, and the arc-shaped card slot 135 on the second shell 12 is also opposite to the convex ring at the bottle mouth of the water rocket. When the warehouse body and the water rocket are combined, the arc-shaped card slot 135 is also clamped and positioned with the convex ring;

[0027] A surrounding rubber band 3 is connected to the bottom of the side wall of the first shell 11; a mounting recess 120 is formed in the middle of the second shell 12, which is sunken toward the inside of the shell. A rubber band connecting and releasing device 4 is arranged in the mounting recess 120. The rubber band connecting and releasing device 4 can be connected to the movable end of the surrounding rubber band 3 and release the movable end of the surrounding rubber band 3 when appropriate. When in use, the first shell 11 and the second shell 12 can be closed to form a warehouse body by wrapping the surrounding rubber band 3 around the outer wall of the warehouse for one or two times, and then connecting its movable end to the rubber band connecting and releasing device 4. When the water rocket is launched and flies for a certain period of time, the rubber band connecting and releasing device 4 releases the movable end of the surrounding rubber band 3, so that the closing external force of the surrounding rubber band 3 on the warehouse body disappears, and the warehouse body resumes the open state under the action of the elastic connecting rib 101, so that the parachute or display slogan in the warehouse body is opened in the air.

[0028] Furthermore, at least one group of first rubber band holes 103 is provided on the first shell 11, and a spacing portion 104 is provided between each group of first rubber band holes 103. At least one second rubber band hole 105 is provided on the second shell 12, and a rubber band buckle 106 protruding into the warehouse body is provided on the inner wall of the second shell 12 and next to the second rubber band hole 105. A pre-tightening rubber band 2 is connected to the spacing portion 104 between each group of first rubber band holes, and the other end of the pre-tightening rubber band 2 crosses the elastic connecting rib 101 between the first shell 11 and the second shell 12, penetrates from the second rubber band hole 105 into the second shell 12 and is buckled with the rubber band buckle 106; the pre-tightening rubber band 2 is used to further provide the first shell 11 and the second shell 12 with the power of pre-tightening and opening, thereby ensuring that the first shell 11 and the second shell 12 are opened to the maximum in the air; combined with Figure 2 As shown, in this embodiment, there are two groups of first rubber band holes 103 and two second rubber band holes 105, wherein the two groups of first rubber band holes 103 are respectively connected to a pre-tightening rubber band 2, for a total of two pre-tightening rubber bands 2;

[0029] The top outer walls of the first shell 11 and the second shell 12 are respectively formed with a pair of relative rubber band limit baffles 107, and a rubber band limit groove is formed between the rubber band limit baffles 107, or a recessed rubber band limit groove can be directly formed on the top surface of the first shell 11 and the second shell 12; and an inflection point protrusion 108 is also protrudingly provided at the outer wall of the first shell 11 and the bottom end of the rubber band limit baffle 107, and the inflection point protrusion 108 can be used to guide the surrounding rubber band 3 to turn and enter the rubber band limit baffle 107, so that the surrounding rubber band 3 is wound around the top of the bullet head, so that the top assembly of the warehouse body 1 is more tightly in place, and the defects such as gap leakage at the top caused by uneven winding of the rubber band are avoided, so that the flight effect of the water rocket is optimized.

[0030] A group of third rubber band holes 109 is further formed on the side wall of the bottom of the first housing 11 , and the spacing parts of the third rubber band holes 109 are connected to the fixed ends of the surrounding rubber bands 3 .

[0031] The top docking surfaces of the first shell 11 and the second shell 12 are respectively formed with an arc-shaped positioning strip 111 and an arc-shaped positioning groove 121, so as to facilitate the top positioning and docking of the first shell 11 and the second shell 12;

[0032] In this embodiment, the rubber band connecting and releasing device 4 is a mechanical pull-back timer, which has a handle portion 41 that can be connected to the surrounding rubber band 3 and can be rotated to adjust the timing length, and also has a stop portion 42 that prevents the timer from timing when the pull-back spring is tightened in the initial state, and a pin hole 421 is provided on the stop portion 42; that is, before the water rocket is launched, the spring is rotated and tightened through the shape of the handle portion 41 of the timer, and then a pin 43 is inserted into the pin hole 421 of the stop portion 42, and the outer end of the pin 43 is blocked by the shaft of the shape of the handle portion 41, thereby preventing the stop portion from rotating, so that the spring is kept The outer end of the pin 43 is connected to the launch platform through a thin rope or a thin line, and when the water rocket is launched from the launch platform, the pin 43 will be separated from the pin hole 421 of the anti-rotation part 42 under the action of the tension of the thin rope or the thin line. At this time, the timer starts to rotate and count under the action of its return spring. When the handle part 41 rotates to the end of the surrounding rubber band 3 and is separated from it, the winding and closing force of the surrounding rubber band 3 on the warehouse body 1 disappears. At this time, the warehouse body 1 can be opened in the air, and the parachute and the loading objects such as the slogan inside can be exposed, thereby achieving the dual effects of landing and display.

[0033] Combination Figure 3 , Figure 5 As shown, the mounting recess 120 where the rubber band connection and release device 4 is located is inclined relative to the axis of the warehouse body 1, so that when the pin 43 is inserted into the pin hole of the anti-rotation part 42 and is blocked by the handle part 41, the pin 43 can be kept in a vertical state or parallel to the launching direction of the water rocket, so that the pin 43 can be smoothly separated from the timer at the moment of launching and start timing, avoiding affecting the launching effect due to the unsmooth removal of the pin.

[0034] The mounting recess 120 is also provided with tie holes (omitted in the figure) on both sides for the tie to pass through, so that the timer can be fixedly installed in the mounting recess using the tie, and the assembly is simple and convenient. Of course, the timer can also be fixedly installed by screwing the through holes on the bottom surface of the mounting recess 120 or by bonding.

[0035] Combination Figure 3 As shown, when in use, one end of the surrounding rubber band 3 is connected to a spacer 104 between a group of first rubber band holes 103 located at the bottom, and then spirally wraps around the entire warehouse body for one or two times, and then bypasses the rubber band limit stop bar 107 at the top of the bullet head through the inflection point protrusion 108, and then connects to the rubber band on the second shell 12 and the release mechanism on the release device 4;

[0036] After being assembled and released into the air, the timer starts timing. When the timer is completed or reaches a certain set height, its release mechanism releases the rubber band, and the surrounding rubber band 3 recovers under its own elasticity, and the winding force on the first shell 11 and the second shell 12 disappears. The first shell 11 and the second shell 12 are opened to each other around their elastic connecting ribs 101 under the action of their elastic connecting ribs 101 and the pre-tightening rubber band 2, so that the parachute and loaded items such as slogans or ribbons in the parachute compartment are all opened and then slowly descend, thereby achieving a better display and test effect.

[0037] In this embodiment, the rubber band connection and release device 4 can be a spring-type mechanical timer, and its adjustment handle for twisting the spring can be connected to the movable end of the wound rubber band. When it is rotated several times and loosened, the surrounding rubber band 3 can be released; the timer can also be an electronic timer or an induction timer. When the water rocket rises to a certain height, the induction timer automatically opens the release mechanism after sensing the change in air pressure, so that the release mechanism releases the surrounding rubber band, thereby opening the parachute compartment.

[0038] Combination Figure 4 As shown, the present invention also provides a water rocket, which includes the above-mentioned large-volume split-type water rocket parachute chamber; the top of the arrow body 5 of the water rocket adopts the mouth of a beverage bottle, and the mouth of the bottle is fixedly connected to the connecting part at the bottom of the chamber body.

[0039] After the parachute warehouse of the present invention adopts the above structure, the warehouse body adopts a bullet-like shape, which matches the shape of the water rocket. The length of the warehouse body can be lengthened according to the needs of loading items so that its volume meets the use requirements, and the opening method of the warehouse body is changed to side opening or double opening. The opening area after opening is maximized, and the internal space of the warehouse body is almost completely exposed. The loads in the warehouse body, including parachutes, can be opened smoothly, and there will be no situation where the parachute cannot be opened.

[0040] Therefore, the umbrella compartment of the present invention has stronger practicality and DIY personalized fun, and its secondary assembly is simpler and more convenient.

Claims

1. A large-volume split-type water rocket parachute chamber, characterized in that: The umbrella compartment has a bullet-shaped compartment body, which is formed by a first shell body and a second shell body that can be opened and closed. One side edge of the first shell body is connected to the second shell body by an elastic connecting rib, and the other side edge is respectively provided with a relative limit buckle; the elastic connecting rib makes the first shell body and the second shell body open in a normal state; A connection portion connected to the top of the water rocket body is formed at the center of the bottom surface of the warehouse body, and the connection portion includes a semicircular through hole formed at the center of the bottom surface of the first shell body and an arc-shaped notch formed at the bottom surface of the second shell body, wherein a semicircular groove is formed on the inner side of the hole wall of the semicircular through hole of the first shell body; an arc-shaped groove opposite to the semicircular groove is formed inside the arc-shaped notch of the second shell body; A surrounding rubber band is connected to the bottom of the side wall of the first shell; a mounting recess recessed toward the inside of the shell is also formed in the middle of the second shell, and a rubber band connecting and releasing device is provided in the mounting recess. The rubber band connecting and releasing device can be connected to the movable end of the surrounding rubber band and release the movable end of the surrounding rubber band when appropriate.

2. The large-capacity split-type water rocket parachute chamber according to claim 1 is characterized in that: At least one group of first rubber band holes is opened on the first shell, at least one second rubber band hole is opened on the second shell, and a rubber band buckle protruding into the warehouse body is provided on the inner wall of the second shell and next to the second rubber band hole. A pre-tightening rubber band is connected to the spacing part between each group of first rubber band holes, and the other end of the pre-tightening rubber band crosses the elastic connecting ribs between the first shell and the second shell, passes through the second rubber band hole, enters the second shell, and is buckled with the rubber band buckle.

3. The large-capacity split-type water rocket parachute chamber according to claim 1 is characterized in that: A group of third rubber band holes is also opened on the side wall of the bottom of the first shell, and the spacing parts of the third rubber band holes are connected to the fixed ends of the surrounding rubber bands.

4. The large-capacity split-type water rocket parachute chamber according to claim 1 is characterized in that: A pair of opposite rubber limit strips are respectively formed on the outside of the top of the first shell and the second shell, and a rubber limit groove is formed between the rubber limit strips, or the rubber limit groove can be directly formed on the top surface of the first shell and the second shell; and an inflection point protrusion is also protruded at the outer wall of the first shell and the end of the rubber limit strip.

5. The large-capacity split-type water rocket parachute chamber according to claim 1 or 4, characterized in that: An arc-shaped positioning strip and an arc-shaped positioning groove are respectively formed on the top butting surfaces of the first shell and the second shell.

6. The large-capacity split-type water rocket parachute chamber according to claim 1 is characterized in that: The rubber band connection and release device is a mechanical pull-back timer, which has a handle that can be connected to the movable end of the rubber band and can be rotated to adjust the timing length. It also has a stopper that prevents the timer from timing when the pull-back spring is tightened in the initial state, and a pin hole is provided on the stopper.

7. The large-capacity split-type water rocket parachute chamber according to claim 1 or 6, characterized in that: The installation recess where the rubber band connection and release device is located is inclined relative to the axis of the warehouse body.

8. The large-capacity split-type water rocket parachute chamber according to claim 7 is characterized in that: Both sides of the mounting recess are also provided with tie holes for the tie to pass through.

9. The large-capacity split-type water rocket parachute chamber according to claim 1 is characterized in that: The outer wall of the semicircular through hole of the first shell is also formed with a limited step surface.

10. A water rocket, characterized in that: The water rocket comprises the large-capacity split-type water rocket parachute chamber as described in any one of the above claims; the top of the water rocket body adopts the mouth of a beverage bottle, and the mouth of the bottle is fixedly connected to the connecting part at the bottom of the chamber body.

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