Table tennis ball picking device

Abstract

A table tennis ball picking device comprises an outer shell, a storage battery and a button assembly are arranged at the top in the outer shell, the button assembly is located above the storage battery, a button body penetrates out of the top of the outer shell, a fan is arranged below the storage battery, a space is reserved between the fan and the storage battery, and a vent hole is formed in the position, corresponding to the space, of the outer shell. The button assembly, the draught fan and the first contact switch are all electrically connected with the storage battery through the controller, a turning plate is arranged in the middle of the interior of the outer shell, the lower side of the turning plate is hinged to the outer shell, a ball outlet is formed in the position, corresponding to the turning plate, of the outer shell, and a hose is arranged at the position, corresponding to the ball outlet, of the outer side of the outer shell. The side, close to the outer shell, of the hose is cylindrical, and the side, away from the outer shell, of the hose is in an attached and sealed duckbilled shape. The device is simple in structure and convenient to use, ball picking operation can be completed by holding with one hand, and bending down is not needed.

Description

Technical Field

[0001] The utility model relates to a table tennis picking-up device. Background Art

[0002] According to the characteristics of table tennis sports, during the process of hitting the table tennis ball back and forth, it is inevitable that the table tennis ball will frequently fall to the ground and the hand needs to touch the ground to bend down to pick up the ball. Due to age factors, especially for middle-aged and elderly table tennis enthusiasts, frequent bending down to pick up the ball is likely to cause spinal injuries, lumbar muscle strain, and abnormal blood pressure fluctuations due to the violent bending and standing-up movements, followed by adverse symptoms such as dizziness and blackouts in front of the eyes, which is very harmful to physical health. This frequent ball-picking is also likely to cause additional fatigue to the body even for younger table tennis enthusiasts, making them unable to fully immerse themselves in table tennis sports. There are also devices or equipment for picking up balls in the prior art. For the structure, refer to Chinese Patent CN111569376B. This kind of device has a complex structure and a large volume. Although it can pick up balls, it has a high practical difficulty, is not portable, and has a low efficiency. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a table tennis picking-up device, which has a simple structure, is convenient to use, can complete the ball-picking operation with a single hand holding, and does not require bending down.

[0004] To solve the above technical problem, the utility model provides a table tennis picking-up device, which includes a housing body arranged vertically with an open lower side and a cylindrical inner cavity. At the top inside the housing body, there is a storage battery and a button assembly. The button assembly is located above the storage battery, and the button body of the button assembly passes through the top of the housing body. The shape and size of the storage battery match the inner cavity of the housing body. At the position of the circumferential side wall of the housing body corresponding to the storage battery, there is a charging interface penetrating the housing body radially. At the upper part inside the housing body, corresponding to the lower side of the storage battery, there is a vertically arranged fan. The air inlet of the fan is downward and the air outlet is upward. There is a space between the upper side of the fan and the lower side of the storage battery. The circumferential side wall of the housing body is provided with a plurality of ventilation holes penetrating the housing body radially at this position. Below the fan, there is a horizontally arranged net plate, and a first contact switch is embedded on the lower side of the net plate. The button assembly, the fan, and the first contact switch are all electrically connected to the storage battery through a controller. In the middle region of the housing body in the height direction, there is an inclined flap. The shape and size of the flap match the inner cavity of the housing body. The lower side of the flap is hinged to the inner wall of the housing body. At the position of the side wall of the housing body corresponding to the flap, there is a ball outlet. The lower side of the ball outlet is opposite to the lower side of the flap. At the outer side position of the housing body corresponding to the ball outlet, there is a hose made of elastic material with both ends open. One side of the hose along its length direction close to the housing body is cylindrical, and the other side of the hose along its length direction away from the housing body is in a duckbill shape that fits and seals.

[0005] Preferably, the button assembly includes a vertically arranged guide cylinder. The upper side of the guide cylinder is connected to the top of the outer casing, and the lower side of the guide cylinder abuts against the upper side of the storage battery. In the upper part of the guide cylinder, there is a button body. The button body is cylindrical and slidably matched with the guide cylinder in the vertical direction. The upper part of the button body passes through the top surface of the outer casing. The lower part of the button body is located in the guide cylinder, and its bottom is connected to the storage battery by a spring. An electromagnet and an upwardly arranged second contact switch are provided on the inner wall of the guide cylinder corresponding to the lower part of the button body. The upper side of the electromagnet is flush with the upper side of the second contact switch. The lower side surface of the button body is made of iron material. When the button body moves downward to contact the electromagnet and the second contact switch, the upper side surface of the button body is just flush with the upper side surface of the outer casing. Among them, both the electromagnet and the second contact switch are electrically connected to the storage battery through a controller.

[0006] Preferably, at the open lower side of the outer casing, there is a horn-shaped base with upper and lower openings, a larger diameter at the lower side, and a smaller diameter at the upper side. The inner cavity of the outer casing is connected to the inner cavity of the horn-shaped base, and the diameter of the inner cavity of the outer casing matches the diameter of the upper opening of the horn-shaped base.

[0007] For the sake of simplicity in explaining the problem, hereinafter, a table tennis ball picking-up device of the present invention is simply referred to as this device.

[0008] The usage method of this device is as follows: When picking up the ball, hold the upper part of the outer casing of this device, and use the horn-shaped base to capture the table tennis ball that has fallen to the ground. The horn-shaped base plays a guiding role to guide the captured table tennis ball to be directly opposite to the open lower side of the outer casing and a part of the upper part of the table tennis ball has entered the inner cavity of the outer casing. At this time, press the top button body. When the upper side surface of the button body is flush with the upper side surface of the outer casing, the lower side of the button body just contacts the second contact switch. After the signal of the second contact switch is transmitted to the controller, the controller controls the fan to start and the electromagnet to be energized. At this time, the button body is attracted by the electromagnet to form a locked state. The fan forms a negative pressure in the upper part of the inner cavity of the outer casing. At this time, since one side of the hose along its length away from the outer casing is in a duckbill shape with a tight fit and air cannot enter the inner cavity of the outer casing from here, and it is impossible to achieve absolute sealing between the horn-shaped base and the ground, external air will enter the inner cavity of the outer casing from the gap between the horn-shaped base and the ground. At this time, the flap is pushed upward by the atmospheric pressure to block the ball outlet. The table tennis ball also moves upward along the inner cavity of the outer casing under the push of the atmospheric pressure. When the table tennis ball hits the net plate after passing over the flap for a certain distance, it will trigger the first contact switch. After the signal of the first contact switch is transmitted to the controller, the controller controls the fan to stop rotating and the electromagnet to be powered off. The button body resets under the elastic action of the spring. At this time, due to the disappearance of the negative pressure, the flap falls under the action of gravity. At the same time, the table tennis ball also falls under the action of gravity and lands on the flap, and then rolls through the ball outlet along the inclination angle of the flap into the hose, and finally the table tennis ball can be extruded from the side of the hose along its length away from the outer casing by squeezing the hose (the originally duckbill-shaped fitting is opened by deformation).

[0009] Advantages of this device: With this device, when playing table tennis, people don't need to frequently bend down to pick up the balls that fall on the ground. Its structure is simple and easy to use. The picking operation can be completed with a single hand grip, thus avoiding the extra fatigue of the body caused by frequent bending and some potential risks, providing a time-saving and labor-saving option for table tennis enthusiasts during the exercise. In addition, the trumpet-shaped base enables this device to stand stably and is not easy to fall over. Brief Description of the Drawings

[0010] Figure 1 is the structural schematic diagram of this device.

[0011] Figure 2 is Figure 1 the partial enlarged view of part A in (button lifted).

[0012] Figure 3 is Figure 1 another partial enlarged view of part A in (button pressed). Detailed Implementation Manner

[0013] See Figures 1-3, a table tennis ball picking-up device, comprising a housing 1 which is vertically arranged with an open lower side and a cylindrical inner cavity. At the top inside the housing 1, there is a storage battery 2 and a button assembly. The shape and size of the storage battery 2 match the inner cavity of the housing 1. At the circumferential side wall position of the housing 1 corresponding to the storage battery 2, there is a charging interface 21 that penetrates the housing 1 radially. The button assembly is located above the storage battery 2. The button assembly includes a vertically arranged guiding cylinder 3. The upper side of the guiding cylinder 3 is connected to the top of the housing 1, and the lower side of the guiding cylinder 3 abuts against the upper side of the storage battery 2. In the upper part of the guiding cylinder 3, there is a button body 31. The button body 31 is cylindrical and slidably matched with the guiding cylinder 3 in the vertical direction. The upper part of the button body 31 penetrates through the top surface of the housing 1. The lower part of the button body 31 is located inside the guiding cylinder 3 and its bottom is connected to the storage battery 2 through a spring 32. At the inner wall position of the guiding cylinder 3 corresponding to the lower part of the button body 31, there is an electromagnet 33 and an upwardly arranged second contact switch 34. The upper sides of the electromagnet 33 and the second contact switch 34 are flush. The lower surface of the button body 31 is made of iron material. When the button body 31 moves downward to contact the electromagnet 33 and the second contact switch 34, the upper surface of the button body 31 is just flush with the upper surface of the housing 1. At the upper part inside the housing 1 corresponding to the lower part of the storage battery 2, there is a vertically arranged blower 4. The air inlet of the blower 4 faces downward and the air outlet faces upward. There is a space between the upper side of the blower 4 and the lower side of the storage battery 2. The circumferential side wall of the housing 1 is provided with a plurality of ventilation holes 41 (in this embodiment, the ventilation holes 41 are vertical grid holes) that penetrate the housing 1 radially at this position. Below the blower 4, there is a horizontally arranged net plate 5. The lower surface of the net plate 5 is embedded with a first contact switch 51. The electromagnet 33, the second contact switch 34, the blower 4, and the first contact switch 51 are all electrically connected to the storage battery 2 through a controller (in this embodiment, the controller and the storage battery 2 are integrally designed, and the electrical connection lines are not shown in the figure). In the middle region of the housing 1 in the height direction, there is an inclined flap 6. The shape and size of the flap 6 match the inner cavity of the housing 1. The lower side of the flap 6 is hinged to the inner wall of the housing 1. At the side wall position of the housing 1 corresponding to the flap 6, there is a ball outlet 11. The lower side of the ball outlet 11 is opposite to the lower side position of the flap 6. At the outer side position of the housing 1 corresponding to the ball outlet 11, there is a hose 7 made of elastic material with both ends open. One side of the hose 7 along its length direction close to the housing 1 is cylindrical, and the other side of the hose 7 along its length direction away from the housing 1 is in a duckbill shape that fits and seals.

[0014] At the open lower side of the housing 1, there is a flared base 8 with upper and lower openings, a larger lower diameter, and a smaller upper diameter. The inner cavity of the housing 1 is connected to the inner cavity of the flared base 8. The diameter of the inner cavity of the housing 1 matches the diameter of the upper opening of the flared base 8.

[0015] The usage method of this device is as follows: When picking up the ball, hold the upper part of the outer shell 1 of this device, and use the trumpet-shaped base 8 to capture the table tennis ball that has fallen to the ground. The trumpet-shaped base 8 plays a guiding role to guide the captured table tennis ball to be directly opposite to the open lower side of the outer shell 1 and a part of the upper part of the table tennis ball has entered the inner cavity of the outer shell 1. At this time, press the top button body 31. When the upper side of the button body 31 is flush with the upper side of the outer shell 1, the lower side of the button body 31 just contacts the second contact switch 34. After the signal of the second contact switch 34 is transmitted to the controller, the controller controls the fan 4 to start and the electromagnet 33 to be energized. At this time, the button body 31 is attracted by the electromagnet 33 to form a locked state. The fan 4 forms a negative pressure in the upper part of the inner cavity of the outer shell 1. At this time, since one side of the hose 7 along its length away from the outer shell 1 is in a duckbill shape that fits and seals, air cannot enter the inner cavity of the outer shell 1 from here. And it is impossible to achieve absolute sealing between the trumpet-shaped base 8 and the ground, so the external air will enter the inner cavity of the outer shell 1 from the gap between the trumpet-shaped base 8 and the ground. At this time, the flap 6 is pushed up by the atmospheric pressure to block the ball outlet 11, and the table tennis ball also moves upward along the inner cavity of the outer shell 1 under the push of the atmospheric pressure. When the table tennis ball hits the net plate 5 after crossing the flap 6 for a certain distance, it will trigger the first contact switch 51. After the signal of the first contact switch 51 is transmitted to the controller, the controller controls the fan 4 to stop rotating and the electromagnet 33 to be powered off. The button body 31 resets under the elastic action of the spring 32. At this time, due to the disappearance of the negative pressure, the flap 6 falls under the action of gravity, and at the same time the table tennis ball also falls under the action of gravity and lands on the flap 6, and then rolls through the ball outlet 11 along the inclination angle of the flap 6 and falls into the hose 7, and finally the table tennis ball can be extruded from the side of the hose 7 along its length away from the outer shell 1 by squeezing the hose 7 (by deforming to open the originally duckbill-shaped fitting).

[0016] Advantages of this device: With this device, people do not need to frequently bend down to pick up the balls that have fallen to the ground during table tennis activities. Its structure is simple and easy to use. One can complete the ball-picking operation with a single hand hold, thus avoiding the extra fatigue of the body caused by frequent bending down and some potential risks, providing a time-saving and labor-saving option for table tennis enthusiasts during the activity. In addition, the trumpet-shaped base 8 enables this device to stand stably and is not easily toppled over.

Claims

1. A table tennis ball picking-up device, characterized in that: It includes a housing body which is vertically arranged with an open lower side and a cylindrical inner cavity. At the top inside the housing body, there is a storage battery and a button assembly. The button assembly is located above the storage battery, and the button body of the button assembly passes through the top of the housing body. The shape and size of the storage battery match the inner cavity of the housing body. At the circumferential side wall position of the housing body corresponding to the storage battery, there is a charging interface that penetrates the housing body radially. At the upper position inside the housing body, corresponding to the lower side of the storage battery, there is a vertically arranged blower. The air inlet of the blower is downward and the air outlet is upward. There is a space between the upper side of the blower and the lower side of the storage battery. At the circumferential side wall of the housing body corresponding to this position, there are several ventilation holes that penetrate the housing body radially. Below the blower, there is a horizontally arranged mesh plate, and a first contact switch is embedded on the lower side of the mesh plate. The button assembly, the blower, and the first contact switch are all electrically connected to the storage battery through a controller. In the middle region of the housing body in the height direction, there is an inclined flap. The shape and size of the flap match the inner cavity of the housing body. The lower side of the flap is hinged to the inner wall of the housing body. At the side wall position of the housing body corresponding to the flap, there is a ball outlet. The lower side of the ball outlet is opposite to the lower side of the flap. At the outer side position of the housing body corresponding to the ball outlet, there is a hose made of elastic material with both ends open. One side of the hose along its length direction close to the housing body is cylindrical, and the other side of the hose along its length direction away from the housing body is in a duckbill shape that fits and seals.

2. The table tennis ball picking-up device according to claim 1, characterized in that: The button assembly includes a vertically arranged guide cylinder. The upper side of the guide cylinder is connected to the top of the housing body, and the lower side of the guide cylinder abuts against the upper side of the storage battery. In the upper part of the guide cylinder, there is a button body. The button body is cylindrical and slidably matched with the guide cylinder in the vertical direction. The upper part of the button body passes through the top surface of the housing body. The lower part of the button body is located inside the guide cylinder and its bottom is connected to the storage battery through a spring. At the inner wall position of the guide cylinder corresponding to the lower part of the button body, there is an electromagnet and an upwardly arranged second contact switch. The upper side of the electromagnet and the upper side of the second contact switch are flush. The lower side of the button body is made of iron material. When the button body moves downward to contact the electromagnet and the second contact switch, the upper side of the button body is just flush with the upper side of the housing body. Among them, the electromagnet and the second contact switch are both electrically connected to the storage battery through a controller.

3. The table tennis ball picking device according to claim 1, characterized in that: At the open lower side of the housing body, there is a flared base with upper and lower openings, a larger diameter at the lower side and a smaller diameter at the upper side. The inner cavity of the housing body is connected to the inner cavity of the flared base, and the diameter of the inner cavity of the housing body matches the diameter of the upper opening of the flared base.

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