CN203989760U - A kind of teaching javelin - Google Patents

A kind of teaching javelin Download PDF

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Publication number
CN203989760U
CN203989760U CN201420372845.9U CN201420372845U CN203989760U CN 203989760 U CN203989760 U CN 203989760U CN 201420372845 U CN201420372845 U CN 201420372845U CN 203989760 U CN203989760 U CN 203989760U
Authority
CN
China
Prior art keywords
gun barrel
javelin
rifle head
teaching
gun
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420372845.9U
Other languages
Chinese (zh)
Inventor
刘桂林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaxing Vocational and Technical College
Original Assignee
Jiaxing Vocational and Technical College
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiaxing Vocational and Technical College filed Critical Jiaxing Vocational and Technical College
Priority to CN201420372845.9U priority Critical patent/CN203989760U/en
Application granted granted Critical
Publication of CN203989760U publication Critical patent/CN203989760U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a kind of teaching javelin, javelin is robbed bar by front end gun barrel and rear end and is formed, gun barrel is connected by threaded engagement with chamber bar, the tubular structure that described gun barrel is hollow, and gun barrel front end is provided with rifle head, rifle head is interior for being provided with cavity, cavity and gun barrel connect, and rifle head is provided with some through holes, and barral of a gun front end and gun barrel cooperation place are fixed with spring, the described spring other end is fixedly connected with sliding shoe, and described sliding shoe can slide in gun barrel.The utlity model has and use simple, safe advantage, be applicable to student's exercise and match and use.

Description

A kind of teaching javelin
Technical field
The utility model relates to a kind of teaching aid, is a kind of teaching javelin specifically.
Background technology
Javelin is traditional sports items, has the javelin of carrying out contact class in each school.But existing javelin is all made with metal, rifle head is very sharp-pointed, easily causes in use danger, harm life safety.
Utility model content
For the problems referred to above, the utility model is designed a kind of javelin, has and can reduce the harm that javelin causes people in the time of flight.
Technical solutions of the utility model are: a kind of teaching javelin, described javelin is robbed bar by front end gun barrel and rear end and is formed, gun barrel is connected by threaded engagement with chamber bar, the tubular structure that described gun barrel is hollow, and gun barrel front end is provided with rifle head, rifle head is interior for being provided with cavity, cavity and gun barrel connect, and rifle head is provided with some through holes, and described barral of a gun front end and gun barrel cooperation place are fixed with spring, the described spring other end is fixedly connected with sliding shoe, and described sliding shoe can slide in gun barrel.
Described barral of a gun is provided with rubber sleeve.
Described sliding shoe is provided with sealing ring.
Described rifle head is made up of plastic cement.
The beneficial effects of the utility model: teaching javelin of the present utility model, by the Front-end Design at javelin a rifle head that plastic cement is made, rifle head is soft plastic, even if javelin is hit people awing, also can not cause serious injury, and in javelin, design the structure for mark javelin throwing distance, can know the cast of mark javelin, have advantages of that use is simple, safe, applicable student practises using.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of the utility model gun barrel position.
Fig. 3 is the utility model partial enlarged drawing in use.
Detailed description of the invention
Technical problem, technical scheme and the beneficial effect that will solve in order more to clearly demonstrate the utility model patent, below in conjunction with Figure of description and embodiment, be further elaborated to the utility model.
As illustrated in fig. 1 and 2, a kind of teaching javelin of the present utility model, javelin is robbed bar 3 by front end gun barrel 1 and rear end and is formed, gun barrel 1 is connected by screw thread 6 with chamber bar 3, the tubular structure that gun barrel 1 is hollow, gun barrel 1 front end is provided with the rifle head 4 that soft plastic is made, rifle head 4 is interior for being provided with cavity, cavity and gun barrel 1 connect, rifle head 4 is provided with some through holes 9, described barral of a gun 3 front ends and gun barrel 1 cooperation place are fixed with spring 5, spring 5 other ends are fixedly connected with sliding shoe 8, sliding shoe 8 can slide in gun barrel, barral of a gun 3 is provided with rubber sleeve 2, in use, the position of not only can mark holding, and in the time holding, be unlikely to skid.
In use, pack lime mark powder 10 into gun barrel inside, then sliding shoe 8 is filled in to gun barrel 1 is rear to be screwed barral of a gun 3 by screw thread, now sliding shoe 8, because spring 5 acts on, is suspended in gun barrel 1, leaves certain compression stroke with gun barrel 1 bottom.In the time throwing, mark powder 10 is sealed in gun barrel 1, in the time of rifle head 4 front end contact impact ground, due to the inertia of gravity and javelin colliding surface, sliding shoe 8 elongates spring along sliding to rifle head 4 in cylinder, because sealing ring 7 is installed on sliding shoe 8, make sliding shoe 8 move downward compressed air, at this moment, be contained in mark powder 10 in rifle head 4 and gun barrel 1 through hole 9 from rifle head and splash, in the time that rifle head lands, mark powder splashes and forms mark pick-up point on the ground, can measure the distance throwing a javelin, compared with existing javelin, its pick-up point is more easily measured, and rifle head of the present utility model position is soft plastic material, even careless accidental injury people in the middle of flight, can not cause large injury yet, greatly reduce again the danger in javelin teaching, being applicable to the javelin teaching of each school and match uses.

Claims (4)

1. a teaching javelin, comprise its body, it is characterized in that described javelin robs bar by front end gun barrel and rear end and form, gun barrel is connected by threaded engagement with chamber bar, described gun barrel is the tubular structure of hollow, gun barrel front end is provided with rifle head, and in rifle head, for being provided with cavity, cavity and gun barrel connect, rifle head is provided with some through holes, described barral of a gun front end and gun barrel cooperation place are fixed with spring, and the described spring other end is fixedly connected with sliding shoe, and described sliding shoe can slide in gun barrel.
2. a kind of teaching javelin according to claim 1, is characterized in that described barral of a gun is provided with rubber sleeve.
3. a kind of teaching javelin according to claim 1, is characterized in that described sliding shoe is provided with sealing ring.
4. a kind of teaching javelin according to claim 1, is characterized in that described rifle head is made up of plastic cement.
CN201420372845.9U 2014-07-08 2014-07-08 A kind of teaching javelin Expired - Fee Related CN203989760U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420372845.9U CN203989760U (en) 2014-07-08 2014-07-08 A kind of teaching javelin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420372845.9U CN203989760U (en) 2014-07-08 2014-07-08 A kind of teaching javelin

Publications (1)

Publication Number Publication Date
CN203989760U true CN203989760U (en) 2014-12-10

Family

ID=52029837

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420372845.9U Expired - Fee Related CN203989760U (en) 2014-07-08 2014-07-08 A kind of teaching javelin

Country Status (1)

Country Link
CN (1) CN203989760U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106512356A (en) * 2016-12-30 2017-03-22 王新宇 Javelin for preventing accidental injury
CN108837451A (en) * 2018-06-28 2018-11-20 安徽凯盛茶业有限公司 A kind of javelin with pipette tips set and the javelin instrument with regulation counter weight base marker post

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106512356A (en) * 2016-12-30 2017-03-22 王新宇 Javelin for preventing accidental injury
CN106512356B (en) * 2016-12-30 2018-10-12 王新宇 A kind of javelin of incidental injury prevention
CN108837451A (en) * 2018-06-28 2018-11-20 安徽凯盛茶业有限公司 A kind of javelin with pipette tips set and the javelin instrument with regulation counter weight base marker post

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20150708

EXPY Termination of patent right or utility model