Water rocket launching pad convenient for physics teaching

Abstract

The utility model provides a water rocket launching pad convenient for physics teaching, which comprises a base and an overturning platform, the overturning platform is provided with a quick joint for connecting a water rocket, and a movable outer ring sleeved on the quick joint; one end of the first wire core is connected with the movable outer ring and can pull the movable outer ring to axially move along the quick connector; one end of the second wire core is connected with the overturning platform, and the pulling force of the second wire core on the wire coil can enable the overturning platform to rotate around the first direction; one end of the tension spring is connected with the turnover platform, the other end of the tension spring is connected with the base, and the tension applied to the turnover platform by the tension spring can enable the turnover platform to rotate around the second direction. The water rocket is controlled to launch through the first wire core, meanwhile, the posture of the overturning platform is controlled through the second wire core, on the premise that an operator keeps a safe distance from the water rocket, the control structure is simplified, the pitching angle of the overturning platform is conveniently controlled, and meanwhile the water rocket can be conveniently overturned. And the motion relation among the structures of the water rocket launching pad can be displayed for young students.

Description

Technical Field

[0001] The utility model belongs to the technical field of water rockets, and particularly relates to a water rocket launching platform convenient for physics teaching. Background Technique

[0002] A water rocket is a physical teaching aid designed using the mass ratio and air pressure. It can cultivate students' learning interests. Most water rockets are obtained by modifying the bottle mouth of beverage bottles. Now, quick connectors for installing at the bottle mouth of beverage bottles to make water rockets and launching components for inflating the inside of water rockets by cooperating with the quick connectors can be bought in the market. It uses balls and springs to achieve clamping for positioning the water rocket. When launching, by controlling the movement of the movable outer ring of the quick connector, the water rocket is separated from the launching component. In the existing technology, there are two ways to control the launch of the launching platform. One is to control the launch of the water rocket by pulling down with a connecting zip, but this control method requires the operator to be in close contact with the water rocket launcher. The water ejected by the water rocket during launch is easy to impact the operator, causing danger to the operator. The other is to pull the movable outer ring by the piston rod of the cylinder and control the action of the cylinder through a signal control module to achieve remote control of the water rocket launch. However, due to the length of the cylinder itself, there are requirements for the size of the water rocket launching platform, and it has an impact on the pitching angle of the launching platform. Moreover, due to the reason that some structures are controlled electrically, the control logic of the water rocket launching platform is not intuitive enough, which is not convenient for younger students to understand the conduction relationship between each structure, and has great limitations on teaching. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a water rocket launching platform convenient for physics teaching to more intuitively display the principle of the pitching angle of the water rocket launching platform, and at the same time avoid the components for controlling the launch of the water rocket from restricting the pitching angle of the launching platform.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A water rocket launching platform convenient for physics teaching includes a base and a flipping platform. A quick connector for connecting the water rocket is provided on the flipping platform, and a movable outer ring is sleeved on the quick connector;

[0006] The first wire core, one end of which is connected to the movable outer ring and can pull the movable outer ring to move axially along the quick connector;

[0007] The second wire core, one end of which is connected to the flipping platform, and the pulling force of the second wire core on the wire reel can make the flipping platform rotate around the first direction;

[0008] A tension spring, one end of which is connected to the flipping platform and the other end is connected to the base, and the pulling force exerted by the tension spring on the flipping platform can cause the flipping platform to rotate around the second direction.

[0009] Further, the flipping platform extends a connecting ear towards the base. A wire spool is fixedly provided on one side of the connecting ear, and the wire spool is coaxially arranged with the rotation axis of the flipping platform. The second wire core is wound around the periphery of the wire spool and is fixedly connected to the wire spool.

[0010] Further, this launching platform further includes a control handle. The control handle includes a holding part and a pressing handle. The holding part extends a connecting part outwards. The pressing handle is rotatably connected to the connecting part. The first wire core is wrapped with a first wire tube. One end of the first wire tube abuts against the connecting part, and the wire core passes through the connecting part and is connected to one end of the pressing handle. The other end of the wire tube abuts against the flipping platform. The wire core passes through the flipping platform and is connected to the movable outer ring. When the pressing handle rotates around its connection with the connecting part, it can pull the first wire core to move within the first wire tube.

[0011] Further, a winding part is also provided on the holding part. The winding part includes a winding ring. The winding ring can rotate around its own axis. A sleeve is provided in the middle of the winding ring. The end of the second wire core is connected to the sleeve. When the winding ring rotates around its own axis, the second wire core can be wound around the sleeve.

[0012] Further, the winding part further includes a limiting piece. The limiting piece is fixedly connected to the holding part, and the end of the sleeve abuts against the limiting piece.

[0013] Further, a receiving hole is opened on the outer peripheral edge of the limiting edge. A plurality of grooves are opened along the circumference on the outer side of the winding ring. A ball is arranged in the receiving hole, and the ball can abut against the limiting edge. When the winding ring rotates, the ball can be inserted into the grooves in sequence.

[0014] Further, the outer end of the ball is spherical.

[0015] Further, a spring is arranged in the receiving hole. One end of the spring abuts against the bottom of the receiving hole and the other end abuts against the ball.

[0016] Further, an air pump is arranged in the base. The air pump is connected to a quick connector through an air pipe.

[0017] Compared with the prior art, the water rocket launching platform of the present utility model for facilitating physics teaching has the following advantages:

[0018] The utility model controls the launching of the water rocket by a first wire core, and controls the pitching motion of the flip platform by another wire core, thereby simplifying the control structure under the premise of keeping a safe distance between the operator and the water rocket, and facilitating the control of the pitching angle of the flip platform, and more conducive to demonstrating the motion relationship between various structures of the water rocket launch platform to younger students;

[0019] The second wire core is fixed to the outer circumference of the wire drum so that the external force applied by the second wire core generates torque and the second wire core is stored at the same time;

[0020] The use of a pressure handle to control the movement of the first line core makes the process of pulling the first line core more labor-saving. At the same time, it is more conducive to younger students to participate in the launch operation and arouse their interest;

[0021] The pins are matched with the plurality of grooves so as to timely position the winding ring after the winding ring moves a certain angle, thereby preventing the tension spring from pulling the second wire core to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the connection between the launch pad and the control handle;

[0024] Figure 2 This is a schematic diagram of the launch pad structure;

[0025] Figure 3 This is an exploded diagram of the internal structure of the control handle;

[0026] Figure 4 It is a schematic diagram of the coordination structure of the limit plate and the winding ring.

[0027] Description of reference numerals:

[0028] 1-base; 2-turning platform; 21-connecting ear; 22-reel; 23-quick connector; 24-movable outer ring; 25-top; 26-tension spring; 5-control switch; 6-control handle; 61-core; 62-holding part; 63-pressure handle; 64-connecting part; 65-winding part; 651-limiting plate; 652-groove; 653-guide cavity; 654-winding ring; 655-sleeve; 656-accommodating hole; 657-pin; 658-spring; 7-first wire core; 71-first wire tube; 8-second wire core; 81-second wire tube. DETAILED DESCRIPTION

[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0032] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0033] The water rocket launching platform for facilitating physical teaching described in the utility model includes a base 1 and a flipping platform 2. A quick connector 23 for connecting the water rocket is provided on the flipping platform 2, and a movable outer ring 24 and a spring 658 are sleeved on the quick connector 23. One end of the spring 658 abuts against the movable outer ring 24, and the other end abuts against the boss on the outer circle of the quick connector 23. When the movable outer ring 24 is in the upper limit position, the quick connector 23 can clamp the connecting head of the water rocket to prevent the water rocket from falling off. When the movable outer ring 24 is in the lower limit position, the quick connector 23 can be separated from the water rocket. Specifically, the specific structure of the quick connector 23 for connecting the water rocket has been introduced in the authorized patent "2021214290024" and the background technology, and will not be elaborated here. Connecting ears 21 extend relatively from the base 1 and the flipping platform 2 respectively, and the two connecting ears 21 are connected by a rotating shaft, so that the flipping platform 2 can make a pitching motion above the base 1. A space is opened in the base 1, and an air pump and a battery for supplying power to the air pump are placed in the space. The air pump is connected to the quick connector 23 of the water rocket through a trachea, and the water rocket is inflated through the air pump.

[0034] The water rocket launch platform for physics teaching described in the utility model also includes a control handle 6, which includes a core shaft 61, a gripping portion 62, a pressure handle 63, a winding portion 65 and a control switch 5. In this embodiment, the gripping portion 62 is fixedly arranged at one end of the core shaft 61, and the gripping portion 62 is a rubber sleeve sleeved on the core shaft 61 for the convenience of the operator to hold. The winding portion 65 includes a limit plate 651 fixedly arranged on the core shaft 61 and a winding ring 654 rotatably connected to the core shaft 61. A sleeve 655 extends from the middle part of the winding ring 654 toward the limit plate 651, and the sleeve 655 is sleeved on the core shaft 61. A receiving hole 656 is formed on the outer edge of the limiting piece 651, and a plurality of grooves 652 are formed on the outer edge of the winding ring 654 along the circumference. A spring 658 and a pin 657 are provided in the receiving hole 656. One end of the spring 658 abuts against the bottom of the receiving hole 656, and the other end abuts against the pin 657. The end of the pin 657 is a ball head. The bottom of the groove 652 is an arc-shaped surface. When the winding ring 654 rotates, the pin 657 can enter or leave the groove 652 through the cooperation of the ball head and the arc-shaped surface, thereby preventing the winding ring 654 from rotating freely on the core shaft 61. In this embodiment, The winding ring 654 is closer to the holding portion 62 than the limiting plate 651, so that the operator can control the rotation of the winding ring 654. In this embodiment, a line guide cavity 653 is further provided inside the limiting plate 651, and the length direction of the line guide cavity 653 is tangent to the winding ring 654, and the sleeve 655 can extend into the line guide cavity 653; a connecting portion 64 is also fixed on the core shaft 61, and the pressure handle 63 is rotatably connected to the connecting portion 64, and the connection relationship and connection structure of the pressure handle 63 and the connecting portion 64 with the core shaft 61 are similar to the connection relationship between the holding portion 62 and the pressure handle 63 on the bicycle handlebar in the prior art. The structure is the same and will not be described again here; a fixed sleeve is provided at the end of the core shaft 61, and the control switch 5 is placed on the fixed sleeve. More specifically, the optional circuit connection structure in this embodiment is that the positive electrode of the air pump circuit is connected to the positive electrode of the battery, and the negative electrode of the air pump circuit is connected to the negative electrode of the battery through an electric wire and the control switch 5, and the first connecting pin of the control switch 5 and the negative electrode of the air pump circuit and the second connecting pin of the control switch 5 are respectively connected to the negative electrode of the battery through two electric wires. The control switch 5 is convenient for the operator to control the start and stop of the air pump to inflate the water rocket. In this embodiment, the control switch 5 is a toggle switch.

[0035] The pressing handle 63 is connected to the movable outer ring 24 of the quick connector 23 through the first wire core 7. Specifically, a through hole is provided on the flipping platform 2, and the first wire core 7 passes through the through hole. One end of the wire core is connected and fixed to the movable outer ring 24 through a hose clamp, and the other end is fixedly connected to the pressing handle 63. The first wire core 7 is wrapped with a first wire tube 71, and the first wire core 7 can move within the first wire tube 71. One end of the first wire tube 71 abuts against the flipping platform 2, and the other end abuts against the connecting portion 64. When the pressing handle 63 is pressed, the pressing handle 63 drives the first wire core 7 to move within the wire tube, thereby pulling the movable outer ring 24 to move axially along the quick connector 23, so that the connector of the water rocket can be separated from the quick connector 23; the winding ring 654 and the flipping platform 2 are connected through a second wire core 8. Specifically, a wire reel 22 is provided on the connecting ear 21 of the flipping platform 2, and the axis of the wire reel 22 is coaxially arranged with the rotation axis of the flipping platform 2. One end of the second wire core 8 is wound around the wire reel 22 and fixedly connected to the outer circle of the wire reel 22, and the other end is wound around the sleeve 655 through the guiding space and fixedly connected to the sleeve 655. The second wire core 8 is wrapped with a second wire tube 81. An abutting top 25 extends from the connecting ear 21 of the flipping platform 2. One end of the second wire tube 81 abuts against the abutting top 25, and the other end abuts against the outer shell of the guiding cavity 653. When the winding ring 654 rotates in the first direction, the flipping platform 2 rotates in the first direction under the pulling of the second wire core 8. A tension spring 26 is further provided between the base 1 and the flipping platform 2. One end of the tension spring 26 is connected to the flipping platform 2, and the other end is connected to the base 1. The pulling force exerted by the tension spring 26 on the flipping platform 2 can cause the flipping platform 2 to rotate around the second direction. Therefore, when the winding ring 654 moves in the second direction, the external force exerted by the second wire core 8 on the wire reel 22 disappears, and the flipping platform 2 rotates in the second direction under the pulling force of the tension spring 26. During this process, when the operator does not control the winding ring 654, the ball 657 is inserted into the groove 652, and the tension spring 26 cannot pull the flipping platform 2. Those skilled in the art should know that the connection between the second wire core 8 and the wire reel 22 and the sleeve 655 and the connection between the first wire core 7 and the pressing handle 63 are fixed by welding, clamping, tying, etc., which will not be elaborated here. During the operation of the operator, the water rocket can be launched by pulling the pressing handle 63. At the same time, through the lever of the pressing handle 63, the force required to rotate the pressing handle 63 is reduced, which is more conducive to younger students to participate in the launch of the water rocket, improving the participation of students and increasing the learning fun of students. At the same time, the pitching angle of the flipping platform 2 is controlled through the cooperation of the second wire core 8 and the spring 658, and the control of the flipping platform 2 is more simply and clearly shown in front of the students, which is more conducive to younger students to learn.

[0036] The air pipe between the air pump and the quick connector 23 is connected to a pressure gauge for indicating the air pressure inside the water rocket. In this embodiment, the pressure gauge can be connected through another air pipe so that the pressure gauge can be bundled and fixed on the control handle 6.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water rocket launch pad convenient for physical teaching, comprising a base and a flipping platform. An adapter for connecting a water rocket is disposed on the flipping platform, and a movable outer ring is sleeved on the adapter. It is characterized in that: It further includes a first wire core, one end of which is connected to the movable outer ring and can pull the movable outer ring to move axially along the quick connector; a second wire core, one end of which is connected to the flipping platform, and the pulling force of the second wire core on the wire reel can cause the flipping platform to rotate around the first direction; a tension spring, one end of which is connected to the flipping platform and the other end is connected to the base, and the pulling force exerted by the tension spring on the flipping platform can cause the flipping platform to rotate around the second direction.

2. The water rocket launching platform for facilitating physics teaching according to claim 1, characterized in that: The flipping platform extends towards the base to form a connecting ear, and a wire reel is fixedly provided on one side of the connecting ear. The wire reel is coaxially arranged with the rotation axis of the flipping platform. The second wire core is wound around the circumference of the wire reel and is fixedly connected to the wire reel.

3. The water rocket launching platform for facilitating physics teaching according to claim 1, characterized in that: It further includes a control handle, which includes a holding part and a pressing handle. The holding part extends outwards to form a connecting part, and the pressing handle is rotatably connected to the connecting part. The first wire core is wrapped with a first wire tube. One end of the first wire tube abuts against the connecting part, and the wire core passes through the connecting part and is connected to one end of the pressing handle. The other end of the wire tube abuts against the flipping platform. The first wire core passes through the flipping platform and is connected to the movable outer ring. When the pressing handle rotates around its connection with the connecting part, it can pull the first wire core to move in the first wire tube.

4. The water rocket launch pad for facilitating physics teaching according to claim 3, characterized in that: A winding part is further provided on the holding part. The winding part includes a winding ring which can rotate around its own axis. A sleeve is provided in the middle of the winding ring. The end of the second wire core is connected to the sleeve. When the winding ring rotates around its own axis, the second wire core can be wound around the sleeve.

5. The water rocket launch pad for facilitating physics teaching according to claim 4, wherein: The winding part further includes a limiting piece, which is fixedly connected to the holding part, and the end of the sleeve abuts against the limiting piece.

6. The water rocket launching platform for facilitating physics teaching according to claim 5, characterized in that: A receiving hole is formed on the outer peripheral edge of the limiting edge. A plurality of grooves are formed along the circumference on the outer side of the winding ring. A ball is placed in the receiving hole, and the ball can abut against the limiting edge. When the winding ring rotates, the ball can be inserted into the grooves in sequence.

7. The water rocket launch pad for facilitating physics teaching according to claim 6, wherein: The outer end of the ball is spherical.

8. The water rocket launch pad for facilitating physics teaching according to claim 6, characterized in that: A spring is placed in the receiving hole. One end of the spring abuts against the bottom of the receiving hole and the other end abuts against the ball.

9. The water rocket launch pad for facilitating physics teaching according to claim 1, wherein: An air pump is provided in the base, and the air pump is connected to the quick connector through an air pipe.

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