CN110975250A

CN110975250A - Separable and jointed badminton racket

Info

Publication number: CN110975250A
Application number: CN201911391787.8A
Authority: CN
Inventors: 纪音
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-10
Anticipated expiration: 2039-12-30
Also published as: CN110975250B

Abstract

The invention discloses a badminton racket, wherein a racket head and a racket handle can be separated and combined, and particularly, the provided badminton racket can realize no relative rotation, safety and reliability through the cross-shaped buckle connection of the racket handle and the racket head, more importantly, a user has no separation feeling, and simultaneously, the separation can be simply realized through an ejection mechanism. The badminton racket provided by the invention achieves good coordination and unification in terms of resource saving, safety and convenience, and has higher market value and application prospect.

Description

Separable and jointed badminton racket

[ technical field ] A method for producing a semiconductor device

The invention relates to a badminton racket, in particular to a badminton racket with a handle and a racket head which can be separated and combined.

[ background of the invention ]

The badminton is a sports which is suitable for people of all ages and is deeply popular with the majority of sports enthusiasts and the common people. The conventional badminton racket is of an integral structure, the racket head is scrapped as a whole due to the broken line or the deformation of the outer hub, the racket handle is still brand-new at the moment, or a user is used to the racket handle and does not discard the racket handle, and resources are wasted. Therefore, badminton rackets with a handle detachably connected with a racket head appear in the market, such as the published patents CN2274081Y, CN2845856Y, CN201179309Y, CN203196237Y and CN204017299U, however, the handle and the racket head of the badminton racket disclosed in the above documents are either directly connected by threads, or connected by pins or fixed coils, and by analyzing the above methods, the problems of unstable and unsafe connection, feeling of separation of the handle from the user and complicated assembly and disassembly are generally existed. Aiming at the problems, the badminton racket provided by the invention not only saves resources, but also achieves good coordination and unification in safety and convenience, and has higher market value and application prospect.

[ summary of the invention ]

In order to solve the problems, the invention provides a badminton racket which is realized by the following means.

The badminton racket comprises a racket head and a racket handle, wherein the racket head comprises a net wire fixing frame and a joint handle, the racket handle is jointed and separated with the joint handle through a plug-in structure, the plug-in structure comprises an inserting part at the front end of the racket handle and an accommodating part at the front end of the joint handle, the inserting part is of a roughly cross-shaped inserting structure, a slotted hole structure matched with the accommodating part is formed in the accommodating part, and the jointing and the separation of the racket head and the racket handle are realized through the jointing and the separation of the cross-shaped inserting structure and the slotted hole structure.

Further, the inserting portion comprises a cross-shaped plug, the cross-shaped plug comprises four convex blocks, each convex block comprises a groove which transversely penetrates through, two sides of each groove are hinged to two clamping heads through a pin shaft respectively, the top end of each clamping head is a hook head of a hook-shaped structure, the outer side face of each hook head is an inclined plane, the two clamping heads are connected through a connecting spring, and the connecting spring is in a compression state when the racket handle is connected with the joint handle.

Further, the accommodating part comprises four cross-shaped accommodating grooves for accommodating the convex block and the clamping head, wherein the length of the accommodating groove is slightly larger than the sum of the lengths of the convex block and the chuck, the accommodating part also comprises eight ejection mechanisms, each ejection mechanism comprises a jacking bolt, a compression backing plate and a connecting sleeve, and a fastening bolt tightly connecting the pressing base plate, the connecting sleeve and the joint handle, wherein the upper part of the pressing bolt is provided with an external thread part, the lower part of the pressing bolt is provided with a smooth rod, a spring is sleeved on the smooth rod, the lower end of the smooth rod is provided with an inclined plane, the inclined plane is matched with the shape of the outer inclined plane of the top hook head of the chuck, the inner side of the connecting sleeve is provided with an inner thread which is in threaded connection with the outer thread part, the lower end of the spring seat is provided with a bearing part for bearing the stop spring, and the middle position of the bearing part is provided with a clamping hole.

Further, the working engineering of the invention is as follows: before the racket is jointed, the racket handle and the jointing handle are in a separated state, a eraser can use any simple tool or even hand to press and bend the clamping head towards the inner side of the center, so that the clamping head can extend into the accommodating groove, then the racket handle is pushed along the length direction of the racket handle until the clamping head is abutted to the clamping hole, and at the moment, under the action of the connecting spring, the clamping head extends into the clamping hole to finish the jointing process. When the clamping head needs to be separated, a user can use a small L-shaped wrench (sold in the market) to screw the jacking bolts one by one, the smooth rod extends, the inclined surface at the lower end of the smooth rod is contacted with the outer inclined surface of the hook head at the top end of the clamping head and presses the clamping head away from the clamping hole, the rest seven jacking bolts are sequentially operated, all the clamping heads are finally separated from the clamping hole, and then the racket handle is pulled out to complete separation. It should be noted that the engagement shank has a relief groove for receiving two jack bolts with mutually perpendicular axes, so that after the disengagement is completed, the operator must turn the jack bolts in the opposite direction and the smooth rod is retracted until the two jack bolts with mutually perpendicular axes are almost in contact, stopping the process, in preparation for the next engagement.

The invention has the beneficial technical effects that: the racket head and the racket handle are connected more firmly and reliably by adopting a clamping mode, the safety is greatly guaranteed, the racket head and the racket handle are not separated during use due to a special connecting structure, the racket head and the racket handle are simple to operate, special equipment is not needed, resources are saved, good coordination and unification on the safety and the convenience are achieved, and the racket head and the racket handle have high market value and application prospect.

[ description of the drawings ]

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the engagement of the handle with the head;

fig. 3 is a cross-sectional view a-a of fig. 1.

[ detailed description ] embodiments

Referring to fig. 1, the badminton racket of the present invention comprises a racket head and a racket handle 2, wherein the racket head comprises a net fixing frame 1 and an engaging handle 3, the racket handle 2 is engaged with and disengaged from the engaging handle 3 by inserting and pulling, as shown in fig. 2, the racket handle 2 can be inserted into the engaging handle 3 upwards along direction a to complete the engagement, and the racket handle 2 can be pulled out from the engaging handle 3 downwards along direction B to complete the disengagement.

The specific connection structure between the handle 2 and the joint handle 3 is shown in fig. 3, i.e. a-a section view in fig. 1, which is also a key contribution of the present invention. In general, the front end of the cylindrical handle 2 has a length of insertion portion shaped in a generally cruciform shape, and the engagement handle 3 has a receiving portion for receiving the cruciform insertion structure of the front end of the handle 2, which is also a cruciform slot structure fitted thereto. Now, the insertion portion of the leading end of the handle 2 and the accommodation portion of the leading end of the engagement handle 3 will be described in detail.

The inserting part at the front end of the racket handle 2 comprises a plug in a cross shape, the cross-shaped plug comprises four convex blocks, each convex block comprises a groove 5 which transversely penetrates through, two sides of each groove 5 are respectively hinged with two clamping heads 11 through pin shafts 13, the top end of each clamping head 11 is provided with a hook-shaped structure, the outer side surface of each hook head is an inclined surface, the two clamping heads 11 are connected through a connecting spring 12, and the connecting spring 12 is always in a compression state when the racket handle 2 is connected with the joint handle 3.

The receiving portion of the front end of the engagement shaft 3, which substantially matches the shape of the insertion portion of the front end of the racket shaft 2, includes four cross-shaped receiving grooves 14 for receiving the projection and the cartridge 11, wherein the length of the receiving groove 14 is slightly larger than the sum of the lengths of the projection and the cartridge 11. The housing also comprises eight ejection mechanisms, see the upper left part of fig. 3, which will now be described in terms of specific ejection mechanisms: each ejection mechanism comprises a jacking bolt 6, a jacking cushion plate 8, a connecting sleeve 9 and a fastening bolt 7 which tightly connects the jacking cushion plate 8, the connecting sleeve 9 and the joint handle 3, the upper part of the jacking bolt 6 is provided with a thread part 4, the lower part of the jacking bolt is provided with a smooth rod 15, the smooth rod 15 is sleeved with a spring 10, the lower end of the smooth rod 15 is provided with an inclined plane, the inclined plane is matched with the shape of an outer inclined plane of a hook at the top end of a clamping head 11, the inner side of the connecting sleeve 9 is provided with an inner thread which is in threaded connection with the thread part 4, the lower end of the connecting sleeve is provided with a bearing part 16 of a stop spring 10.

With reference to fig. 1-3, the process of specific engagement and disengagement of the present invention will now be described as follows: before the racket shaft 2 and the joint shaft 3 are separated, the rubbing implement can use any simple tool, even by hand, to press and bend the clamp 11 towards the inner side of the center, so that the clamp 11 can extend into the accommodating groove 14, then the racket shaft 2 is pushed along the length direction of the racket shaft 2 until the clamp 11 reaches the clamping hole 17, and at the moment, under the action of the connecting spring 12, the clamp 11 extends into the clamping hole 17, and the joint process is completed. When the separation is needed, a user can use a small L-shaped wrench (sold in the market) to screw the jacking bolts 6 one by one, the smooth rod 15 extends, the inclined surface at the lower end of the smooth rod 15 is contacted with the outer inclined surface of the hook head at the top end of the chuck 11 and presses the chuck 11 away from the clamping hole 17, so that the rest seven jacking bolts 6 are operated, all the chucks 11 are finally separated from the clamping holes 17, and then the racket handle 2 is pulled out to complete the separation. It should be noted that the shank 3 has a recess 18 for receiving the two pressing bolts 6 with their axes perpendicular to each other, so that after the separation is completed, the operator turns the pressing bolt 6 in the opposite direction, and the smooth rod 15 is retracted until the two pressing bolts 6 with their axes perpendicular to each other come into contact almost to stop, ready for the next joint.

The racket head and the racket handle are connected more firmly and reliably by adopting a clamping mode, the safety is greatly guaranteed, the racket head and the racket handle are not separated when in use, the racket head is simple to operate, special equipment is not needed, resources are saved, the racket head and the racket handle are well coordinated and unified in safety and convenience, and the racket head and the racket handle have higher market values and application prospects.

It should be particularly noted that any patents and products which do not depart from the gist of the invention are intended to be within the scope of the application.

Claims

1. An engageable and disengageable badminton racket, comprising a head and a handle (2), wherein the head comprises a mesh fixing frame (1) and an engagement handle (3), characterized in that: the racket handle (2) is connected and separated with the joint handle (3) through a plug structure, the plug structure comprises an insertion part at the front end of the racket handle (2) and an accommodating part at the front end of the joint handle (3), the insertion part is of a generally cross-shaped insertion structure, the accommodating part is of a slotted hole structure matched with the insertion part, and the connection and separation of the racket head and the racket handle (2) are realized through the connection and separation of the cross-shaped insertion structure and the slotted hole structure.

2. A badminton racket according to claim 1, further characterized in that: insert portion includes that a shape is criss-cross plug, and criss-cross plug includes four lugs, and every lug includes a recess (5) that transversely runs through, recess (5) both sides are respectively through two dop (11) of round pin axle (13) articulated, dop (11) top has a eave tile that colludes the column structure, the eave tile lateral surface is the inclined plane, adopts connecting spring (12) to connect between two dop (11), connecting spring (12) are in clap handle (2) with be in compression state during joint handle (3) joint all the time.