CN107676318B - Seesaw toy based on true and false pistons - Google Patents
Seesaw toy based on true and false pistons Download PDFInfo
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- CN107676318B CN107676318B CN201711016907.7A CN201711016907A CN107676318B CN 107676318 B CN107676318 B CN 107676318B CN 201711016907 A CN201711016907 A CN 201711016907A CN 107676318 B CN107676318 B CN 107676318B
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- piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- A63G11/00—See-saws
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
The invention discloses a seesaw toy based on true and false pistons, which comprises a first hydraulic cylinder and a second hydraulic cylinder which output reciprocating motion in the vertical direction, wherein a first piston in the first hydraulic cylinder is in dynamic sealing connection with a first cylinder body to form a true piston, and a second piston in the second hydraulic cylinder is communicated with an upper chamber and a lower chamber of the second cylinder body to form a false piston; the lower part of the first cylinder body is provided with a first liquid flow hole, the lower part of the second cylinder body is provided with a second liquid flow hole, and the first liquid flow hole is communicated with the second liquid flow hole through a liquid flow pipe. The seesaw toy is designed based on the true and false piston theory and the Pascal theory, so that a child can learn complex theoretical knowledge while playing, and the seesaw toy is a toy taught in lively activities.
Description
Technical Field
The invention relates to a seesaw toy based on an authentic piston.
Background
The hydraulic cylinder is a common hydraulic actuating element capable of converting hydraulic energy into mechanical energy and performing linear reciprocating motion, has the advantages of simple structure, reliable work, stable motion and the like, and is widely applied to hydraulic systems of various machines. The hydraulic cylinder mainly comprises a cylinder barrel, a piston and a piston rod, and the relative movement between the cylinder barrel, the piston and the piston rod is driven by hydraulic pressure. The matching relationship among the piston, the piston rod and the cylinder barrel is related to the change of the working performance of the hydraulic cylinder, such as the difference of output force and output stroke. Based on this, in order to popularize the knowledge of hydraulic transmission, teenagers who first contact the hydraulic cylinder are interested in exploring the principle inside the hydraulic cylinder, and it is necessary to develop a toy which teaches through lively activities.
Disclosure of Invention
The invention aims to provide a seesaw toy based on an authentic piston.
In order to achieve the above purpose, the invention adopts the following technical scheme: a seesaw toy based on true and false pistons, seesaw toy including output vertical direction reciprocating motion's first pneumatic cylinder and second pneumatic cylinder, wherein:
the first hydraulic cylinder comprises a first cylinder body and a first piston rod assembly, the first piston rod assembly comprises a first piston rod and a first piston fixedly arranged at the lower end part of the first piston rod, the first piston is arranged in an inner cavity of the first cylinder body and is in dynamic sealing connection with the inner side peripheral wall of the first piston, a first through hole for the first piston rod to slide out along the up-down direction is formed in the upper part of the first cylinder body, and a first liquid flow hole is formed in the lower part of the first cylinder body;
the second hydraulic cylinder comprises a second cylinder body and a second piston rod assembly, the second piston rod assembly comprises a second piston rod and a second piston fixedly arranged at the lower end part of the second piston rod, the second piston is arranged in an inner cavity of the second cylinder body to divide the inner cavity into an upper cavity and a lower cavity, a liquid flow channel which is communicated with the upper cavity and the lower cavity is arranged on the second piston, a second through hole which is used for the second piston rod to slide out along the upper and lower direction is arranged on the upper part of the second cylinder body, the second piston rod is in movable sealing connection with the second through hole, a second liquid flow hole is arranged on the lower part of the second cylinder body,
the first liquid flow hole is communicated with the second liquid flow hole through a liquid flow pipe.
Preferably, a plurality of open grooves are formed in the outer peripheral portion of the second piston, and the liquid flow channel is formed between the open grooves and the inner peripheral wall of the second cylinder.
Further, all the open grooves are uniformly distributed at intervals in the circumferential direction on the outer circumferential portion of the second piston.
Preferably, the diameters of the first piston and the second piston are the same.
Further, the rod diameters of the first piston rod and the second piston rod are the same.
Preferably, the first cylinder body comprises a first cylinder barrel and a first cylinder cover fixedly arranged at the upper end part of the first cylinder barrel, the first through hole is formed in the first cylinder cover, and the first piston rod is in clearance fit with the first through hole.
Preferably, the second cylinder body comprises a second cylinder barrel and a second cylinder cover fixedly arranged at the upper end part of the second cylinder barrel, and the second through hole Kong Kaishe is arranged on the second cylinder cover.
Preferably, a first standing board for standing is fixedly arranged on the upper end part of the first piston rod, and a second standing board for standing is fixedly arranged on the upper end part of the second piston rod.
Preferably, the teeterboard toy further comprises a first lever assembly and a second lever assembly,
the first lever assembly comprises a first lever and a first connecting rod, the middle part of the first lever is pivotally connected to a mounting base of the first cylinder body, one end part of the first connecting rod is pivotally connected with the upper end part of the first piston rod, and the other end part of the first connecting rod is pivotally connected with one end part of the first lever;
the second lever assembly comprises a second lever and a second connecting rod, the middle part of the second lever is pivotally connected to the mounting base, one end part of the second connecting rod is pivotally connected with the upper end part of the second piston rod, and the other end part of the second connecting rod is pivotally connected with one end part of the second lever.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the seesaw toy is designed based on the true and false piston theory and the Pascal theory, so that a child can learn complex theoretical knowledge while playing, and the seesaw toy is a toy taught in lively activities, and has the advantages of simple structure, low cost and strong interestingness.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a second hydraulic cylinder according to the first embodiment;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
wherein: 1. a first hydraulic cylinder; 11. a first cylinder; 12. a first cylinder head; 13. a first piston; 14. a first piston rod; 11a, a first liquid flow hole; 2. a second hydraulic cylinder; 21. a second cylinder; 22. a second cylinder cover; 23. a second piston; 24. a second piston rod; 21a, a second liquid flow hole; 23a, an open slot;
3. a liquid flow tube; 4. a first station board; 5. a second station board; 6. a first lever assembly; 61. a first link; 62. a first lever; 7. a second lever assembly; 71. a second link; 72. and a second lever.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Example 1
Referring to fig. 1, a seesaw toy based on true and false pistons includes a first hydraulic cylinder 1 and a second hydraulic cylinder 2 which output reciprocating motions in the vertical direction respectively, and the structures of the two hydraulic cylinders are as follows:
the first hydraulic cylinder 1 comprises a first cylinder body and a first piston rod assembly, wherein the first cylinder body comprises a first cylinder barrel 11 and a first cylinder cover 12 fixedly arranged at the upper end part of the first cylinder barrel 11. The first piston rod assembly comprises a first piston 13 and a first piston rod 14, the first piston rod 14 is distributed along the vertical direction, the first piston 13 is fixed at the lower end part of the first piston rod 14, and the first piston 13 is arranged in the inner cavity of the first cylinder 11 and is connected with the inner side periphery part of the first cylinder in a dynamic sealing way. The first cylinder cover 12 is provided with a first through hole through which the first piston rod 14 slides in the up-down direction, and the first piston rod 14 and the first through hole are in clearance fit. The space below the first piston 13 in the inner chamber of the first cylinder tube 11 forms a rodless chamber of the first hydraulic cylinder 1. The bottom of the first cylinder 11 is provided with a first hydraulic hole 11a for communicating the outside of the first hydraulic cylinder 1 with the rodless cavity.
The second hydraulic cylinder 2 comprises a second cylinder body and a second piston rod assembly, the second cylinder body comprises a second cylinder barrel 21 and a second cylinder cover 22 fixedly arranged at the upper end part of the second cylinder barrel 21, and an inner cavity of the second cylinder body is formed between the second cylinder barrel 21 and the second cylinder cover 22. The second piston rod assembly comprises a second piston 23 and a second piston rod 24, the second piston rod 24 is also distributed in the vertical direction, and the second piston 23 is fixed at the lower end part of the second piston rod 24.
The second piston 23 is disposed in the inner cavity of the second cylinder to divide the inner cavity into an upper chamber and a lower chamber, and a flow channel for communicating the upper chamber and the lower chamber is formed in the second piston 23. In the present embodiment, specifically, as shown in fig. 1 and 2, an open groove 23a is provided in the outer peripheral portion of the second piston 23, and a flow passage is formed between each open groove 23a and the inner peripheral wall of the second cylinder 21. Here, the open grooves 23a are provided in three, and the three open grooves 23a are uniformly distributed at intervals in the circumferential direction on the outer circumferential portion of the second piston 23. The second piston 23 is also referred to as a dummy piston because there is no sealing connection between the second piston 23 and the second cylinder 21.
The second cylinder cover 12 is provided with a second through hole through which the second piston rod 24 slides in the up-down direction, and the second piston rod 24 is connected with the second through hole in a dynamic sealing manner. The lower part of the second cylinder 21 is provided with a second fluid flow hole 21a for communicating the outside of the second hydraulic cylinder 2 with the lower chamber thereof.
The teeterboard toy further comprises a liquid flow tube 3 connected with the first liquid flow hole 11a and the second liquid flow hole 21 a. The teeterboard toy also comprises a first standing board 4 fixedly arranged on the upper end part of the first piston rod 14 and used for standing, and a second standing board 5 fixedly arranged on the upper end part of the second piston rod 24 and used for standing. Thus, two persons stand on the first standing board 4 and the second standing board 5 respectively, and the seesaw lifting play action can be realized.
In particular, in the first cylinder 1 and the second cylinder 2, the diameters of the first piston 13 and the second piston 23 are the same, and the rod diameters of the first piston rod 14 and the second piston rod 24 are also the same. The two cylinders are not seen to be two-way in appearance.
The internal working principle of the teeterboard is as follows:
when an external force Fo is input to the second standing plate 5 of the second hydraulic cylinder 2, the second piston 23 and the second piston rod 24 move downwards together, the upper chamber and the lower chamber in the second hydraulic cylinder 2 are communicated with each other through a plurality of liquid flow channels, and liquid in the lower chamber enters the rodless cavity of the first hydraulic cylinder 1 through the liquid flow pipe 3 to push the first piston 13 and the first piston rod 14 to move upwards together, namely push the first standing plate 4 to move upwards.
When an external force Fi is input to the first standing board 4 of the first hydraulic cylinder 1, the first piston 13 and the first piston rod 14 move downwards together, liquid in the rodless cavity of the first hydraulic cylinder 1 enters the lower cavity of the second hydraulic cylinder 2 through the liquid flow pipe 3, and the second piston 23 and the second piston rod 24 are pushed to move upwards, namely the second standing board 5 is pushed to move upwards.
According to the pascal principle:
where Di is the diameter of the first piston 13 and do is the rod diameter of the second piston rod 24.
It can be seen that the force Fo is input at the second station plate 5 and the force received at the first station plate 4 is amplified to Di 2/do 2 times, which can drive the first station plate 4 up. Thus, the second standing board 5 can easily tilt the heavier standing board 4, which is interesting. Meanwhile, the stroke ratio of the second station board 5 to the first station board 4 is DeltaLo/DeltaLi=Di 2/do 2, so that larger stroke amplification is realized. I.e. a smaller displacement is input at the first standing board 4, i.e. a larger displacement is output by the second standing board 5.
Example two
Referring to fig. 3, the present embodiment differs from the first embodiment mainly in the arrangement of the upper end force input-output mechanism of the first piston rod 14 and the second piston rod 24. In the present embodiment, the force input-output mechanism is provided with a first lever assembly 6 and a second lever assembly 7, respectively.
The first lever assembly 6 includes a first link 61 and a first lever 62, a middle portion of the first lever 62 is pivotally connected to a mounting base (not shown in the drawings, may be a ground on which the first cylinder is mounted) of the first cylinder, one end portion of the first link 61 is pivotally connected to an upper end portion of the first piston rod 14, the other end portion of the first link 61 is pivotally connected to one end portion of the first lever 62, and the other end portion of the first lever 62 forms a first force input portion for a person to sit or stand.
The second lever assembly 7 includes a second link 71 and a second lever 72, the middle portion of the second lever 72 is also pivotally connected to the above-mentioned mounting base, one end portion of the second link 71 is pivotally connected to the upper end portion of the second piston rod 24, the other end portion of the second link 71 is pivotally connected to one end portion of the second lever 72, and the other end portion of the second lever 72 forms a second force input portion for another person to stand or sit.
Thus, two children sit or stand on the outer ends of the first lever 62 and the second lever 72, respectively, so as to realize the lifting and playing actions of the teeterboard.
In summary, the teeterboard toy is designed based on the true and false piston theory and the Pascal theory, so that the children can learn complex theoretical knowledge while playing, and the teeterboard toy is a toy taught in lively activities.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (9)
1. A seesaw toy based on true and false pistons is characterized in that: the seesaw toy include output vertical direction reciprocating motion's first pneumatic cylinder and second pneumatic cylinder, wherein:
the first hydraulic cylinder comprises a first cylinder body and a first piston rod assembly, the first piston rod assembly comprises a first piston rod and a first piston fixedly arranged at the lower end part of the first piston rod, the first piston is arranged in an inner cavity of the first cylinder body and is connected with the inner side peripheral wall of the first piston in a dynamic sealing manner, a first through hole for the first piston rod to slide out in the vertical direction is formed in the upper part of the first cylinder body, and a first liquid flow hole is formed in the lower part of the first cylinder body;
the second hydraulic cylinder comprises a second cylinder body and a second piston rod assembly, the second piston rod assembly comprises a second piston rod and a second piston fixedly arranged at the lower end part of the second piston rod, the second piston is arranged in an inner cavity of the second cylinder body to divide the inner cavity into an upper cavity and a lower cavity, a liquid flow channel which is communicated with the upper cavity and the lower cavity is arranged on the second piston, a second through hole which is used for the second piston rod to slide out along the upper and lower direction is arranged on the upper part of the second cylinder body, the second piston rod is connected with the second through hole in a dynamic sealing way, a second liquid flow hole is arranged on the lower part of the second cylinder body,
the first liquid flow hole is communicated with the second liquid flow hole through a liquid flow pipe.
2. The piston-based teeterboard toy of claim 1, wherein: and a plurality of open grooves are formed in the outer peripheral part of the second piston, and the liquid flow channel is formed between the open grooves and the inner peripheral wall of the second cylinder body.
3. The seesaw toy according to claim 2, wherein the seesaw toy is based on an authentic piston, and is characterized in that: all open grooves are distributed at uniform intervals in the circumferential direction on the outer circumferential portion of the second piston.
4. The piston-based teeterboard toy of claim 1, wherein: the diameters of the first piston and the second piston are the same.
5. The piston-based teeterboard toy of claim 4, wherein: the rod diameters of the first piston rod and the second piston rod are the same.
6. The piston-based teeterboard toy of claim 1, wherein: the first cylinder body comprises a first cylinder barrel and a first cylinder cover fixedly arranged at the upper end part of the first cylinder barrel, the first through hole is formed in the first cylinder cover, and the first piston rod is in clearance fit with the first through hole.
7. The piston-based teeterboard toy of claim 1, wherein: the second cylinder body comprises a second cylinder barrel and a second cylinder cover fixedly arranged at the upper end part of the second cylinder barrel, and the second through hole Kong Kaishe is arranged on the second cylinder cover.
8. A seesaw toy based on an authentic piston according to any one of claims 1 to 7, wherein: the upper end part of the first piston rod is fixedly provided with a first standing plate for standing, and the upper end part of the second piston rod is fixedly provided with a second standing plate for standing.
9. A seesaw toy based on an authentic piston according to any one of claims 1 to 7, wherein: the teeterboard toy further comprises a first lever assembly and a second lever assembly,
the first lever assembly comprises a first lever and a first connecting rod, the middle part of the first lever is pivotally connected to a mounting base of the first cylinder body, one end part of the first connecting rod is pivotally connected with the upper end part of the first piston rod, and the other end part of the first connecting rod is pivotally connected with one end part of the first lever;
the second lever assembly comprises a second lever and a second connecting rod, the middle part of the second lever is pivotally connected to the mounting base, one end part of the second connecting rod is pivotally connected with the upper end part of the second piston rod, and the other end part of the second connecting rod is pivotally connected with one end part of the second lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016907.7A CN107676318B (en) | 2017-10-26 | 2017-10-26 | Seesaw toy based on true and false pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016907.7A CN107676318B (en) | 2017-10-26 | 2017-10-26 | Seesaw toy based on true and false pistons |
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| Publication Number | Publication Date |
|---|---|
| CN107676318A CN107676318A (en) | 2018-02-09 |
| CN107676318B true CN107676318B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711016907.7A Active CN107676318B (en) | 2017-10-26 | 2017-10-26 | Seesaw toy based on true and false pistons |
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| GB707962A (en) * | 1949-11-07 | 1954-04-28 | Boulton Aircraft Ltd | Improvements in and relating to hydraulic jacks |
| KR20100133579A (en) * | 2009-06-12 | 2010-12-22 | 윤동근 | Eans of raising the power by utilizing the seesaw's automatic principle and its device |
| CN201807191U (en) * | 2010-03-19 | 2011-04-27 | 上海百花教育信息咨询服务有限公司 | Educational toys |
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| CN207315758U (en) * | 2017-10-26 | 2018-05-04 | 苏州大闹天宫机器人科技有限公司 | Seesaw toy based on true and false piston |
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2017
- 2017-10-26 CN CN201711016907.7A patent/CN107676318B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1485546A (en) * | 2003-08-19 | 2004-03-31 | 让 焦 | Hydraulic reinforcement electric cylinder |
| CN202971403U (en) * | 2012-12-12 | 2013-06-05 | 东莞朗诚微电子设备有限公司 | Mould oil cylinder device |
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| CN107676318A (en) | 2018-02-09 |
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