CN112675506B

CN112675506B - Novel tennis racket convenient to use for hand in antiskid sweat-absorbing

Info

Publication number: CN112675506B
Application number: CN202011574996.9A
Authority: CN
Inventors: 司友兰
Original assignee: Individual
Current assignee: Peng Zhen
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-12-10
Anticipated expiration: 2040-12-28
Also published as: CN112675506A

Abstract

The invention discloses a novel anti-skid sweat-absorbing tennis racket convenient for putting on hand, which comprises a racket frame and a racket handle, wherein the outer frame wall of the racket frame is fixedly connected with the racket handle, a plurality of longitudinal and transverse net strings are arranged on the inner frame wall of the racket frame, the longitudinal and transverse net strings are mutually crossed and connected, and a plurality of ventilation holes are formed in the racket frame. Has the advantages that: when a user swings the racket, the racket equivalently makes high-speed circular motion along with hands, the sliding block in the cavity slides towards a square far away from the hands under the action of swinging centrifugal force to impact and squeeze the piezoelectric ceramic to generate current, so that the annular electromagnet generates magnetic field acting magnetorheological fluid after being electrified, and due to the reason that the racket is swung by the hands and is tightly held, the elastic air bag and the magnetorheological fluid are changed into a solid shape fitting the hands, so that the contact area is increased, and the anti-skid effect can be realized.

Description

Novel tennis racket convenient to use for hand in antiskid sweat-absorbing

Technical Field

The invention relates to the technical field of sports equipment, in particular to a novel tennis racket which is anti-skid, sweat-absorbing and convenient to put on hand.

Background

Tennis is one of the ball games. The effective tennis court is a rectangle, the middle of the effective tennis court is separated by a net, two players respectively occupy one side of the tennis court, and the players use a tennis racket to hit the tennis. The tennis racket is made of wood racket, aluminum alloy racket, steel racket and composite (nylon and carbon) racket, and any racket can be used for competition. The striking face of the racket must be flat, and is formed by interweaving or connecting strings up and down, and the forming format of the striking face is completely consistent. Each string must be attached to the frame.

As is well known, in the difficulty ranking of sports projects in the world, tennis is high at the head of a racket and is difficult to master, because tennis is heavy in mass, when the tennis racket needs to be greatly swung to enable the tennis racket to collide with tennis, enough potential energy is available to back-hit the tennis, great strength is needed, and meanwhile, the palm of a hand sweats easily during tennis, so that the problem that the racket is held to slide is solved, the hitting effect is influenced, and therefore the novel tennis racket convenient to master is provided.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a novel anti-skid sweat-absorbing tennis racket convenient for users to use.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a novel tennis racket of antiskid sweat-absorbing is convenient for to get one's hand, includes a novel tennis racket of antiskid sweat-absorbing is convenient for to get one's hand, including frame and handle, the outer frame wall and the handle fixed connection of frame, be provided with many vertical and horizontal wires on the inner frame wall of frame, many vertical and horizontal the wire intercrossing connects, a plurality of ventilation holes have been seted up on the frame, every one side that the ventilation hole is close to frame inner frame wall has seted up a spout, spout inner seal sliding connection has a sealed piece, intercommunicating pore and spout intercommunication have been seted up on the inner frame wall of frame, part intercommunicating pore and sealed piece fixed connection are passed respectively to the both ends of wire.

In the novel anti-skidding sweat-absorbing tennis racket convenient for putting on hand, a cavity is formed in one side, close to a racket frame, of the racket handle, a sliding block is connected in the cavity in a sliding mode, a spring is fixedly connected to the cavity wall of one side, far away from the racket frame, of the cavity, one end, far away from the cavity wall, of the spring is fixedly connected with the sliding block, a piece of piezoelectric ceramic is fixed to the cavity and the cavity wall of one side, of the spring, the racket handle is located at a racket holding position and is embedded with an annular electromagnet, and the annular electromagnet is electrically connected with the piezoelectric ceramic through a conducting wire.

In the novel tennis racket convenient to use and capable of preventing skidding, absorbing sweat and putting on hand, a plurality of grooves are uniformly formed in the outer wall of the racket handle at the racket holding position, elastic air bags are glued to the groove walls of the grooves, and magnetorheological fluid is filled in the elastic air bags.

In the novel anti-skid sweat-absorbing tennis racket convenient for the user to get on, the racket handle is positioned between every two adjacent grooves, the air guide pipe is buried in the position, between every two adjacent grooves, of the racket handle, one end of each air guide pipe extends into the racket frame through the racket handle and is communicated with the hole wall of the air vent, and the outer wall of the racket handle positioned at the racket holding position is provided with a plurality of air suction holes communicated with the air guide pipes.

Compared with the prior art, the invention has the advantages that:

1. when a user holds the racket, the magnetorheological fluid in the elastic air bag does not receive the action of a magnetic field and is in a flowing state, so that the user can have better holding experience;

2. when a user swings the racket, the racket equivalently performs high-speed circular motion along with hands, the sliding block in the cavity slides towards a square far away from the hands under the action of swinging centrifugal force, the piezoelectric ceramic is impacted and extruded to generate current, the annular electromagnet generates magnetic field acting magnetorheological fluid after being electrified, and due to the reason that the racket is swung by the hands and is tightly held, the elastic air bag and the magnetorheological fluid are changed into a solid shape fitting the hand shape, so that the contact area is increased, and the anti-skid effect can be realized;

3. in the swinging process of the racket, the ventilation holes flow at a high wind speed to form a transient negative pressure space, so that the sealing blocks in the sliding grooves slightly slide towards the ventilation holes, the net strings are in a tensioned state and have moving elastic potential energy, and the elastic potential energy is transferred to the tennis ball at the moment of hitting the ball, so that the tennis ball is more easily counted and flown out, and the difficulty of hands is reduced for beginners;

4. according to Bernoulli's principle when waving bat, the air pressure difference appears at ventilation hole and the suction hole both ends that are located of air duct for the gas of suction hole department flows to the ventilation hole through the air duct, when the user waved bat promptly, can inhale the sweat of palm in the suction hole, if when the palm hugs closely the suction hole, the adversary had the negative pressure suction to further play anti-skidding effect.

Drawings

FIG. 1 is a schematic structural view of a novel anti-slip sweat-absorbing tennis racket convenient for putting on hand;

FIG. 2 is a sectional view of the structure taken along the line A-A in FIG. 1;

fig. 3 is an enlarged schematic view of the position B of the novel antiskid sweat-absorbing tennis racket convenient for putting on hand.

In the figure: 1 racket frame, 2 racket handles, 3 net wires, 4 ventilation holes, 5 sliding grooves, 6 sealing blocks, 7 communication holes, 8 cavities, 9 sliding blocks, 10 springs, 11 piezoelectric ceramics, 12 annular electromagnets, 13 grooves, 14 elastic air bags, 15 air guide pipes and 16 air suction holes.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-3, a novel tennis racket convenient for anti-slip sweat absorption and easy to handle comprises a racket frame 1 and a racket handle 2, wherein the outer frame wall of the racket frame 1 is fixedly connected with the racket handle 2, the inner frame wall of the racket frame 1 is provided with a plurality of longitudinal and transverse net strings 3, the net strings can be made of nylon threads and have certain elasticity, the longitudinal and transverse net strings 3 are mutually crossed and connected, the racket frame 1 is provided with a plurality of vent holes 4, the vent holes 4 can reduce the weight of the racket and are convenient to use, on the other hand, when the racket is swung, the vent holes 4 are formed, can reduce the windage that receives, improved and wave the flexibility of clapping, one spout 5 has been seted up to one side that every ventilation hole 4 is close to frame wall in the

frame

1, and 5 internal seal sliding connection of spout have a sealed piece 6, have seted up intercommunicating

pore

7 and 5 intercommunications of spout on the frame wall in the frame 1, and intercommunicating

pore

7 and 6 fixed connection of sealed piece are passed respectively at the both ends of some net twine 3.

A cavity 8 is arranged in one side of a racket handle 2 close to a racket frame 1, a sliding block 9 is connected in the cavity 8 in a sliding manner, a spring 10 is fixedly connected with the cavity wall of one side of the cavity 8 far away from the racket frame 1, one end of the spring 10 far away from the cavity wall is fixedly connected with the sliding block 9, a piece of piezoelectric ceramic 11 is fixed on the cavity 8 and the cavity wall of one side of the spring 10, an annular electromagnet 12 is embedded in a racket holding position of the racket handle 2, the annular electromagnet 12 is electrically connected with the piezoelectric ceramic 11 through a conducting wire, a plurality of grooves 13 are uniformly arranged on the outer wall of the racket handle 2 at the racket holding position, an elastic air bag 14 is glued on the groove wall of each groove 13, magnetorheological fluid is filled in each elastic air bag 14, the magnetorheological fluid is a suspension body formed by mixing micro soft magnetic particles with high magnetic conductivity and low magnetic hysteresis and non-conductive liquid, and the suspension body presents the characteristic of low viscosity Newton fluid under the condition of zero magnetic field, and under the action of strong magnetic field, it exhibits high viscosity and low flowability.

An air duct 15 is embedded between every two adjacent grooves 13 of the racket handle 2, one end of each air duct 15 extends into the racket frame 1 through the racket handle 2 and is communicated with the hole wall of one air vent 4, and a plurality of air suction holes 16 are formed in the outer wall water of the racket handle 2 at the racket holding position and are communicated with the air ducts 15.

In the invention, when a user holds the racket, the magnetorheological fluid in the elastic air bag 14 does not receive the action of a magnetic field and is in a flowing state, so that the racket is better held by the user, when a user waves the racket, the racket equivalently makes high-speed circular motion at hand, the slide block 9 in the cavity 8 slides towards a square far away from the hand under the action of the centrifugal force of the wave, the piezoelectric ceramics 11 is impacted and extruded, the piezoelectric ceramics are pressed to generate current to be supplied to the annular electromagnet 12, the annular electromagnet 12 generates a magnetic field after being electrified, the magnetorheological fluid in the elastic air bag 14 is acted to change the magnetorheological fluid into a low-fluidity and solid-like shape, the elastic air bag 14 is changed into a shape fitting the hand shape due to the holding of the hand, the increased contact area can play a role of skid resistance, when the ball collides with the racket, the elastic air bag 14 has a certain buffering effect on the wrist, so that the wrist is prevented from being injured, and the user is protected.

Meanwhile, in the swinging process of the racket, the ventilation hole 4 flows at a high wind speed to form a transient negative pressure space, so that the sealing block 6 in the sliding groove 5 slightly slides towards the ventilation hole 4, the net wire 3 is in a tensioned state and has moving elastic potential energy, and the elastic potential energy is transferred to the tennis ball at the moment of hitting the ball, so that the tennis ball is more easily counted to fly out, and the difficulty of beginners is reduced.

When waving the bat, the wind speed is great in the ventilation hole 4, according to Bernoulli's principle, the air pressure difference is thought to appear at the ventilation hole 4 and the 16 both ends of suction opening that lie in of air duct 15 for the gas of 16 mouths in suction opening department flows to ventilation hole 4 through air duct 15, when the user waved the bat promptly, can inhale the sweat of palm in suction opening 16, when if the palm hugs closely suction opening 16, further played anti-skidding effect to having negative pressure suction.

Although the terms of the racket frame 1, the racket handle 2, the net 3, the vent holes 4, the sliding grooves 5, the sealing blocks 6, the communication holes 7, the cavities 8, the sliding blocks 9, the springs 10, the piezoelectric ceramics 11, the ring-shaped electromagnets 12, the grooves 13, the elastic air bags 14, the air guide tubes 15, the air suction holes 16 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a novel tennis racket of antiskid sweat-absorbing is convenient for to get on hand, includes frame (1) and handle (2), its characterized in that, the outer frame wall and the handle (2) fixed connection of frame (1), be provided with many vertical and horizontal net twines (3) on the inner frame wall of frame (1), many vertical and horizontal net twines (3) cross connection each other, a plurality of ventilation holes (4) have been seted up on frame (1), every one side that ventilation hole (4) are close to frame (1) inner frame wall has seted up a spout (5), spout (5) inner seal sliding connection has a sealed piece (6), seted up intercommunicating pore (7) and spout (5) intercommunication on the inner frame wall of frame (1), part the both ends of net twine (3) pass intercommunicating pore (7) and sealed piece (6) fixed connection respectively.

2. The novel tennis racket convenient to use and capable of preventing skidding, absorbing sweat and facilitating hands of a user according to claim 1, is characterized in that a cavity (8) is formed in one side, close to a racket frame (1), of a racket handle (2), a sliding block (9) is connected in the cavity (8) in a sliding mode, a spring (10) is fixedly connected to the cavity wall of one side, far away from the racket frame (1), of the cavity (8), one end, far away from the cavity wall, of the spring (10) is fixedly connected with the sliding block (9), a piezoelectric ceramic (11) is fixed to the cavity (8) and the cavity wall of one side of the spring (10), an annular electromagnet (12) is buried in a racket handle portion, and the annular electromagnet (12) is electrically connected with the piezoelectric ceramic (11) through a conducting wire.

3. The novel tennis racket convenient for being used for preventing skidding, absorbing sweat and putting on hand as claimed in claim 2, wherein a plurality of grooves (13) are uniformly formed in the outer wall of the racket handle (2) at the racket holding position, elastic air bags (14) are glued on the groove walls of each groove (13), and magnetorheological fluid is filled in each elastic air bag (14).

4. The novel tennis racket convenient to use and capable of preventing skidding, absorbing sweat and facilitating getting on hand according to claim 3, is characterized in that a gas guide tube (15) is embedded between every two adjacent grooves (13) of the racket handle (2), one end of each gas guide tube (15) extends into the racket frame (1) through the racket handle (2) to be communicated with the hole wall of one ventilation hole (4), and a plurality of air suction holes (16) are formed in the outer wall of the racket handle (2) at the racket holding position to be communicated with the gas guide tubes (15).