CN207409166U - A kind of section space-efficient lever principle apparatus for demonstrating - Google Patents

A kind of section space-efficient lever principle apparatus for demonstrating Download PDF

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Publication number
CN207409166U
CN207409166U CN201720829727.XU CN201720829727U CN207409166U CN 207409166 U CN207409166 U CN 207409166U CN 201720829727 U CN201720829727 U CN 201720829727U CN 207409166 U CN207409166 U CN 207409166U
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CN
China
Prior art keywords
turn hole
cross bar
counterweight
demonstrating
connecting rod
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
CN201720829727.XU
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Chinese (zh)
Inventor
高胜寒
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Individual
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Individual
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Priority to CN201720829727.XU priority Critical patent/CN207409166U/en
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Publication of CN207409166U publication Critical patent/CN207409166U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of section space-efficient lever principle apparatus for demonstrating, include cross bar and counterweight, it is characterized in that, cross bar intermediate rear face is provided with turn hole, rotation connection is provided with shaft in turn hole, shaft one end is extended to outside turn hole, shaft has been wholely set connecting rod towards turn hole outside end, sucker is provided among connecting rod, top is provided with hook in connecting rod, it is evenly distributed before the cross bar of turn hole both sides to be provided with jack, cross bar both ends are respectively arranged with a storage box, lid is provided in the storage box, counterweight front end face sets fluted, magnet is provided in groove, the insertion section with groove cooperation is provided with behind counterweight, use a kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, not only save the presentation space of lever demonstration device, also reduce the labor intensity of teaching.

Description

A kind of section space-efficient lever principle apparatus for demonstrating
Technical field
The utility model is related to physics teaching instrument more particularly to a kind of section space-efficient lever principle apparatus for demonstrating.
Background technology
At present, in lever used for physics theory teaching, lever demonstration device is often used, common equipment is a strut A cross bar is hinged above, and evenly distributed setting hanging hole on cross bar needs to hang over counterweight into the hanging hole above cross bar according to experiment On, the counterweight upper and lower side of lever experiment is equipped with hook, in order to raise the price in testing, but this traditional lever demonstration dress It is larger to put occupied space, and traditional lever demonstration device volume is larger, and carrying is inconvenient, and difficulty is brought to teaching.
Utility model content
The purpose of this utility model is that in place of overcome the deficiencies in the prior art, it is former to provide a kind of section space-efficient lever Apparatus for demonstrating is managed, can not only save the presentation space of lever demonstration device, the labor intensity of teaching can also be reduced.
A kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, includes cross bar and counterweight, special Sign is that the cross bar intermediate rear face is provided with turn hole, is rotatablely connected in the turn hole and is provided with shaft, the shaft One end is extended to outside turn hole, and the shaft has been wholely set connecting rod towards turn hole outside end, in the connecting rod Between be fixedly installed sucker, for the sucker towards the cross bar back side, top has been wholely set hook in the connecting rod, described Turn hole both sides cross bar before it is evenly distributed be provided with jack, the cross bar both ends are respectively arranged with a storage box, institute Lid is provided in the storage box stated, the counterweight front end face sets fluted, fixed setting in the groove and jack There is magnet, the insertion section with groove cooperation is provided with behind the counterweight, in use, according to on-the-spot teaching place equipment feelings Condition may be selected to hang the device or by sucker suction on blackboard, then be needed counterweight passing through insertion section according to experiment It is inserted into jack, if necessary to raise the price in same position, directly the insertion section of counterweight can be inserted into groove and is raised the price, not In use, counterweight can be put into Storage Box.
Preferably, the insertion section is irony, can prevent counterweight from coming off out of groove and jack.
A kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, overall structure is simple, operates with Convenient, stability is good, and reliability is high.Using it is described in the utility model it is a kind of section space-efficient lever principle apparatus for demonstrating, no The presentation space of lever demonstration device is only saved, also reduces the labor intensity of teaching.
Description of the drawings
Attached drawing 1 is a kind of structure diagram for saving space-efficient lever principle apparatus for demonstrating described in the utility model.It is attached Fig. 2 is a kind of structural representation of counterweight and insertion section for saving space-efficient lever principle apparatus for demonstrating described in the utility model Figure.
1- links up with 2- sucker 3- connecting rod 4- turn hole 5- cross bar 6- Storage Box 7- shaft 8- jacks 9- counterweight 10- magnet 11- insertion sections 12- grooves.
Specific embodiment
Referring now to attached drawing 1 and attached drawing 2, it is described in conjunction with the embodiments as follows:A kind of section space-efficient lever principle apparatus for demonstrating, Include cross bar 5 and counterweight 9, which is characterized in that 5 intermediate rear face of cross bar is provided with turn hole 4, turns in the turn hole 4 Dynamic to be connected with shaft 7, described 7 one end of shaft extends to 4 outside of turn hole, and the shaft 7 is towards 4 outside end of turn hole Be wholely set connecting rod 3, be fixedly installed sucker 2 among the connecting rod 3, the sucker 2 towards 5 back side of cross bar, Top has been wholely set hook 1 in the connecting rod 3,5 front of cross bar of 4 both sides of turn hole is evenly distributed be provided with it is slotting Hole 8,5 both ends of cross bar are respectively arranged with a storage box 6, lid 13, the weight are provided in the storage box 6 9 front end faces of code set fluted 12, and magnet 10 is fixedly installed in the groove 12 and jack 8, and the counterweight 9 is set below The insertion section 11 coordinated with groove 12 is equipped with, in use, according to on-the-spot teaching place equipment situation, may be selected to hang in the device Or adsorbed by sucker 2 on blackboard, it then needs counterweight 9 being inserted into jack 8 by insertion section 11 according to experiment, if needed It to raise the price in same position, directly the insertion section 11 of counterweight 9 can be inserted into groove 12 and is raised the price, when not in use, can incite somebody to action Counterweight 9 is put into Storage Box 6.
Preferably, the insertion section 11 is irony, can prevent counterweight 9 from coming off out of groove 12 and jack 8.
A kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, overall structure is simple, operates with Convenient, stability is good, and reliability is high.Using it is described in the utility model it is a kind of section space-efficient lever principle apparatus for demonstrating, no The presentation space of lever demonstration device is only saved, also reduces the labor intensity of teaching.

Claims (2)

1. a kind of section space-efficient lever principle apparatus for demonstrating, includes cross bar(5)And counterweight(9), which is characterized in that cross bar (5)Intermediate rear face is provided with turn hole(4), turn hole(4)Interior rotation connection is provided with shaft(7), shaft(7)One end extends to turn hole (4)Outside, shaft(7)Towards turn hole(4)Outside end has been wholely set connecting rod(3), connecting rod(3)Centre is provided with sucker (2), connecting rod(3)Upper top is provided with hook(1), turn hole(4)The cross bar of both sides(5)Front is evenly distributed to be provided with jack (8), cross bar(5)Both ends are respectively arranged with a storage box(6), the storage box(6)On be provided with lid(13), counterweight(9)Front end Face sets fluted(12), groove(12)Inside it is provided with magnet(10), counterweight(9)It is provided with below and groove(12)Cooperation is inserted Enter portion(11).
A kind of 2. section space-efficient lever principle apparatus for demonstrating according to claim 1, it is characterised in that insertion section(11) For irony.
CN201720829727.XU 2017-07-11 2017-07-11 A kind of section space-efficient lever principle apparatus for demonstrating Expired - Fee Related CN207409166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720829727.XU CN207409166U (en) 2017-07-11 2017-07-11 A kind of section space-efficient lever principle apparatus for demonstrating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720829727.XU CN207409166U (en) 2017-07-11 2017-07-11 A kind of section space-efficient lever principle apparatus for demonstrating

Publications (1)

Publication Number Publication Date
CN207409166U true CN207409166U (en) 2018-05-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720829727.XU Expired - Fee Related CN207409166U (en) 2017-07-11 2017-07-11 A kind of section space-efficient lever principle apparatus for demonstrating

Country Status (1)

Country Link
CN (1) CN207409166U (en)

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180525

Termination date: 20190711