CN108176023B

CN108176023B - Automatic inflation football

Info

Publication number: CN108176023B
Application number: CN201711279739.0A
Authority: CN
Inventors: 刘占美; 李嘉; 李智勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-06
Filing date: 2017-12-06
Publication date: 2020-01-03
Anticipated expiration: 2037-12-06
Also published as: CN108176023A

Abstract

The invention relates to the field of sports goods, in particular to an automatic inflation football, which mainly comprises a flexible hollow ball bladder and a plurality of inflators uniformly distributed on the inner wall of the ball bladder, wherein the inflators are provided with air inlet holes communicated with the outside of the ball bladder, first one-way valves for preventing air from leaking are arranged in the air inlet holes, and the inflators can suck external air into the ball bladder due to the inertia effect when the automatic inflation football is in use, so that the automatic inflation effect is realized.

Description

Automatic inflation football

Technical Field

The invention relates to the field of sports goods, in particular to an automatic inflatable football.

Background

The existing inflation-free football is mostly in a pu foaming type soft filling mode or an internal skeleton supporting mode, and the existing two modes are only suitable for being used as toys and are not suitable for formal sports courses in schools or balls for competition. The former has inferior hardness and elasticity but good safety, and is more suitable for preschool children to use as toys, while the latter has slightly better hardness and elasticity than the former but excessively increases the weight and instability of the ball body, and the hardness and elasticity are comparable to those of the traditional air-filled football. But traditional football place can appear the insufficient condition of atmospheric pressure after a long time or use a period, need use the inflater to aerify in the variable time, and the pressure of aerifing is difficult to master simultaneously, has influenced the result of use.

Disclosure of Invention

The invention aims to provide a convenient and automatic inflatable football, which aims to solve the problem that the air pressure is insufficient after the football in the background technology is placed for a long time or used for a period of time.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic inflation football, its characterized in that: the inflator is provided with an air inlet communicated with the outside of the bladder, and a first one-way valve for preventing air from leaking is arranged in the air inlet.

Preferably, the inflator comprises a cylinder and a piston, the cylinder is vertically connected with the inner wall of the bladder, an air inlet communicated with the outside of the bladder is formed in the center of a connecting area of the cylinder and the bladder, a first check valve for preventing air from being discharged to the outside of the bladder is arranged in the air inlet, an exhaust hole is formed in the side wall of one end, close to the inner wall of the bladder, of the cylinder, and a second check valve for preventing air from entering the inside of the cylinder is arranged in the exhaust hole. The piston is arranged in the cylinder and is coaxial with the cylinder, the piston moves along the axis direction of the cylinder, a pull rod is arranged in the center of one end, away from the air inlet, of the piston, the pull rod is coaxial with the cylinder and penetrates through the pull rod hole in the bottom of the cylinder to the outside of the bottom end of the cylinder, a pull ring is arranged at one end, located outside the cylinder, of the pull rod, and the pull ring is connected with a counterweight ball. And one end of the piston, which is far away from the bladder, is provided with a spring matched with the bottom of the cylinder barrel, and the spring pushes the piston to the direction of the air inlet.

Preferably, the air bag comprises an air inflation hole which avoids the overlapping position of the air inlet holes and penetrates through the inner part and the outer part of the bladder, and a third one-way valve for preventing air from leaking is arranged in the air inflation hole.

Preferably, including the counter weight ball with the concentric setting of bladder, the counter weight ball passes through the connecting wire and hangs in bladder central authorities, and the connecting wire is kept away from the one end and the pull ring connection of counter weight ball.

Preferably, the air-pressure-relief structure comprises a pressure-relief hole which is communicated with the inside and the outside of the bladder at the position where the air inlet hole and the inflation hole are not overlapped with the bladder. A spring type safety valve is arranged in the pressure relief hole.

Preferably, the outer surface of the bladder is coated with a flexible outer skin. Through holes are arranged at the corresponding positions of the outer skin, the air inlet hole, the inflation hole and the pressure relief hole.

The invention has the beneficial effects that: when the automatic inflation football is used, the automatic inflation football can continuously perform self pressurization, and the internal pressure is always kept at a preset standard value through the action of the safety valve, so that the use feeling is ensured. In addition, the inflation inlet, the pressure relief inlet and the plurality of air inlets of the automatic inflation football are all set according to the balance weight relationship, so that the gravity center position is accurate in use and the sports performance is good. In addition, the automatic inflatable football has simple structure, safety and stability, retains the characteristics of the traditional inflatable football, and can be used for sports teaching or informal competition.

Drawings

FIG. 1 is an overall cross-sectional view of the present invention;

fig. 2 is a cross-sectional view of the pump according to the present invention;

FIG. 3 is a sectional view of the annular duct of the present invention;

Detailed Description

The following detailed description will be made in conjunction with the accompanying drawings in an embodiment of the present invention.

Example 1

Referring to fig. 1, 2 and 3, the automatic inflation football comprises a flexible hollow bladder 1 and a plurality of inflators 2 uniformly distributed on the inner wall of the bladder 1, the inflators 2 are provided with air inlet holes 3 communicated with the outside of the bladder 1, and first check valves 4 for preventing air from leaking are arranged in the air inlet holes 3. The inflator 2 comprises a cylinder 5 and a piston 6, the cylinder 5 is vertically connected with the inner wall of the bladder 1, an air inlet 3 communicated with the outside of the bladder 1 is formed in the center of the connection area of the cylinder 5 and the bladder 1, a first one-way valve 4 for preventing air from being discharged to the outside of the bladder 1 is arranged in the air inlet 3, an exhaust hole 7 is formed in the side wall of one end, close to the inner wall of the bladder 1, of the cylinder 5, and a second one-way valve 8 for preventing air from entering the inside of the cylinder 5 is arranged in the exhaust hole 7. Be equipped with in the cylinder 5 with the coaxial piston 6 of cylinder 5, piston 6 moves along 5 axis direction movements of cylinder 5, and the piston 6 is kept away from the central authorities of 3 one ends of inlet port and is equipped with pull rod 9, and pull rod 9 sets for with the cylinder 5 is coaxial to run through the outside to 5 bottoms of cylinder through the draw bar hole 10 that sets up in 5 bottoms of cylinder, the one end that pull rod 9 is located 5 outsides of cylinder is equipped with pull ring 11, and pull ring 11 is connected with counterweight ball 12. One end of the piston 6, which is far away from the bladder 1, is provided with a spring 13 which is matched with the bottom of the cylinder 5, and the spring 13 pushes the piston 6 to the direction of the air inlet 3. Comprises an inflation hole 14 which avoids the overlapping position of the air inlet 3 and penetrates through the inner part 1 of the bladder, and a third one-way valve 15 which prevents air from leaking is arranged in the inflation hole 14. The ball type gravity balance device comprises a weight balance ball 12 which is arranged concentrically with the bladder 1, wherein the weight balance ball 12 is hung in the center of the bladder 1 through a connecting line 16, and one end, far away from the weight balance ball 12, of the connecting line 16 is connected with a pull ring 9. Comprises a pressure relief hole 17 which is communicated with the inside and the outside of the bladder 1 at the position where the air inlet hole 3 and the inflation hole 14 are not overlapped with the bladder 1. A spring-type safety valve 18 is arranged in the pressure relief hole 17. Comprises a flexible outer skin 19 coated on the outer surface of the bladder 1. Through holes are arranged at the positions of the outer skin 19 corresponding to the air inlet hole 3, the air charging hole 14 and the pressure releasing hole 17.

The inflator capable of automatically inflating the football balls can also be arranged in the flexible annular pipe 20 in the ball bladder 1 through a plurality of circumferential directions, a plurality of plungers 21 which are used for isolating and sealing the annular pipe 20 in a segmenting mode are arranged in the annular pipe 20, each plunger 21 is hinged to each other through a chain 22, and the chain 22 is arranged on one side, close to the inside of the ring, of the annular pipe 20. An air inlet hole 3 and an air outlet hole 7 are arranged on the annular pipeline 20 between every two adjacent plungers 21, wherein a first one-way valve 4 for preventing air in the annular pipeline 20 from leaking out is arranged in the air inlet hole 3, and a second one-way valve 8 for preventing air in the bladder 1 from entering the annular pipeline 20 is arranged in the air outlet hole 7. All the air inlet holes 3 on the surface of the automatic inflatable football are provided with water-proof and air-permeable films 23.

The working principle is as follows: when the slight atmospheric pressure is not enough, can make the position of counter weight ball 12 produce the skew under the inertia effect through clapping or playing, its skew in-process, the pulling force that counter weight ball 12 produced is greater than the pulling force of spring 13 itself, thereby make the connecting wire 16 of one side not hard up, not hard up connecting wire 16 passes through pull ring 11 and pull rod 9 release piston 6, piston 6 moves to being close to 1 inner wall direction of bladder under the effect of spring 13 this moment, make the air between piston 6 and the cylinder 5 compressed, and its pressure is greater than the air pressure between bladder 1 and the cylinder 5 outside, thereby impress the air in the cylinder 5 inside bladder 1 through the exhaust hole. Meanwhile, in the process of offsetting the counterweight ball 12, the connecting line 16 on the other side is pulled towards the counterweight ball, in the pulling process, the connecting line 16 pulls the piston 6 towards the counterweight ball 12 together through the pull ring 11 and the pull rod 9, meanwhile, the spring in the cylinder barrel 5 is compressed, the air pressure in the cylinder barrel 5 is instantly reduced, and the outside air enters the cylinder through the air inlet 3 under the action of atmospheric pressure. After the automatic inflation football atress was ended, the compressed spring promoted the piston and resumes balanced state, impresses the air in the place cylinder into inside bladder 1 through the exhaust hole simultaneously. Meanwhile, the released piston 1 is pulled by the counterweight ball 12, the connecting wire 16, the pull ring 11 and the pull rod 9, so that the piston 1 moves towards the counterweight ball, and outside air is sucked into the cylinder 5 to prepare for next compression.

In order to achieve that the tensile force generated by the counterweight ball 12 is greater than the tensile force of the spring 13, optionally, the gravity of the counterweight ball 12 needs to be greater than the tensile force of the spring 13, or the gravity of the counterweight ball 12 is several times greater than the tensile force of the spring 13.

When the football is used, the standard air pressure in the football is 0.8-1.1 atmosphere. In order to press the air in the cylinder 5 into the bladder 1 through the vent hole, the pressure generated by the compression of the spring 13 is greater than the standard air pressure in the bladder, i.e. greater than 1.1 atm, preferably 1.1-1.5 atm.

Example 2

The automatic inflation football that this embodiment provided, including bladder 1, set up in 1 inside toroidal tube 20 of bladder to and distribution connection set up in bladder 1 with a plurality of plunger 21 between the toroidal tube 20, each plunger 21 divides the space between toroidal tube 20 and the bladder 1 into a plurality of subspaces, is provided with exhaust hole 7 on the toroidal tube 20 that each subspace corresponds, exhaust hole 7 with the inside intercommunication setting of toroidal tube 20.

The working principle is as follows: when the scheme of the annular pipeline 20 is adopted to realize automatic inflation, the automatic inflation football deforms under external force, so that the annular pipeline 20 is out of round, and the distance between the plungers 21 in the annular pipeline 20 is changed after the annular pipeline 20 is out of round. When two adjacent plungers 21 get closer, air in the space of the annular pipeline 20 isolated between the two plungers 21 can be pressed into the bladder 1 through the air outlet 7, and when two adjacent plungers 21 get farther, outside air can be sucked into the annular pipeline 20 between the two plungers 21 through the air inlet 3 and then pressed into the bladder 1 for use when next deformation is carried out.

In order to prevent the moisture from being sucked into the bladder 1 by mistake in the above automatic air intake scheme, all the air inlets 3 are provided with water-proof and air-permeable films 23. Meanwhile, in order to keep the traditional inflation mode, the automatic inflation football is provided with an inflation hole 14. The automatic inflation football still is equipped with spring relief valve 18 for preventing the excessive inflation, and wherein the spring dynamics of spring relief valve is adjustable, therefore automatic inflation football accessible sets for the inflation threshold value through the elasticity that sets up spring relief valve 18, and when the inside atmospheric pressure of bladder 1 was higher than the threshold value of spring relief valve 18, its inside gas will be followed the pressure release hole and discharged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An automatic inflation football, its characterized in that: the air pump comprises a flexible hollow ball bladder (1) and a plurality of inflators (2) uniformly distributed on the inner wall of the ball bladder (1), wherein the wall of the ball bladder (1) is provided with an air inlet hole (3) communicated with the inflators (2) and the outside of the ball bladder (1) in a penetrating manner, and a first one-way valve (4) for preventing air from leaking is arranged in the air inlet hole (3);

the inflator is realized by a plurality of flexible annular pipelines (20) which are circumferentially arranged in the bladder (1), a plurality of plungers (21) which isolate and seal the annular pipelines (20) in sections are arranged in the annular pipelines (20), the plungers (21) are hinged with each other through chains (22), and the chains (22) are arranged on one side, close to the inside of the ring, of the annular pipelines (20); an air inlet hole (3) and an air outlet hole (7) are formed in the annular pipeline (20) between every two adjacent plungers (21), a first one-way valve (4) for preventing air in the annular pipeline (20) from leaking is arranged in the air inlet hole (3), and a second one-way valve (8) for preventing air in the bladder (1) from entering the annular pipeline (20) is arranged in the air outlet hole (7).

2. The self-inflating soccer ball of claim 1, wherein: comprises an inflation hole (14) which avoids the overlapping position of the air inlet hole (3) and penetrates through the inner part (1) of the bladder, and a third one-way valve (15) for preventing air from leaking is arranged in the inflation hole (14).

3. The self-inflating soccer ball of claim 2, wherein: comprises a pressure relief hole (17) which is communicated with the inside and the outside of the bladder (1) and avoids the overlapping position of the air inlet hole (3) and the inflating hole (14) and the bladder (1); a spring type safety valve (18) is arranged in the pressure relief hole (17).

4. The self-inflating soccer ball of claim 3, wherein: comprises a flexible outer skin (19) coated on the outer surface of the bladder (1); the flexible outer skin (19) is provided with through holes corresponding to the air inlet hole (3), the inflation hole (14) and the pressure relief hole (17).