CN201143378Y

CN201143378Y - Asymmetric lever seesaws

Info

Publication number: CN201143378Y
Application number: CNU2007200648518U
Authority: CN
Inventors: 朱建斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-25
Filing date: 2007-10-25
Publication date: 2008-11-05
Anticipated expiration: 2017-10-25

Abstract

An unsymmetrical lever seesaw belongs to an amusement apparatus. The utility model aims at providing a seesaw which can be used when the weight difference is larger or the numbers of people at two ends are not equal; the seesaw includes a base, a balance plate and a saddle; the bottom surface of the balance plate is provided with racks; the base is provided with racks which are matched with the racks on the balance plate; the balance plate is arranged on the racks of the base by the racks at the bottom part of the balance plate; a grille frame matched with the width and thickness of the balance plate is arranged on the base; besides, the base and the balance plate are fixed by a fixing device. The fixing device can be a bolt fixing device or a pin roll fixing device. The balance plate can also be manufactured with fixed unequal lengths at the two sides of a supporting point, namely the length proportion of the balance plate at the two sides of the supporting point is 1:2, 2:3; 3:4; 4:5, etc., so as to adapt to people with a number of 3, 5, 7,9, etc., to play simultaneously.

Description

Asymmetric seesaw lever

Technical field

The utility model relates to a kind of play apparatus, especially a kind of asymmetric seesaw lever.

Background technology

Seesaw is a kind of quite interesting and instructive play apparatus for child and children.Known seesaw includes bearing, a balance plate and sits the saddle device, the central authorities of long slab strip balance plate are by being pivotally mounted on the bearing, the saddle device is sat at the balance plate two ends, and being sitting in the player that balance plate two sits up straight on the saddle device is that the lifting of fulcrum height swings with the bearing centring point.The bearing of tradition seesaw is installed in the middle part of balance plate, can't be adjusted, so only can use for two players that weight approximately equates, in case body weight differs greatly when particularly the two ends number does not wait, everybody just can only heave a sigh by roof boarding, lost the aims of education of lever balance to a great extent, made seesaw can not give full play to its due function of use, this is its shortcoming.

Summary of the invention

The purpose of this utility model is to provide a kind of asymmetric seesaw lever.But donor heavily differs greatly or the two ends number is not used when not waiting.

The technical scheme that its technical problem that solves the utility model adopts is: 1, activity balancing is board-like, and promptly the length of balance plate on the bearing both sides is adjustable; 2, stable equilibrium is board-like, promptly balance plate at bearing (fulcrum) but the length on both sides be unequal be to fix.

In scheme 1, there is tooth bar the bottom surface of balance plate, have on the base with balance plate on the tooth bar that matches of tooth bar, balance plate by its bottom rack resting on the tooth bar of base, the hurdle frame that has the scantling with balance plate to match on the base, and with fixture base and balance plate are fixed.By the different riding positions of the tooth bar on the adjustment plate on the tooth bar of base, the i.e. length on adjustable and balancing plate both sides.

Described fixture can be screw fixing device or bearing pin fixture.

In scheme 2, balance plate is made fixing unequal length on fulcrum (centring point or pivot) both sides, promptly balance plate is 1: 2 in the ratio of fulcrum two edge lengths, 2: 3,3: 4,4: 5 etc., adapting to 3 people, 5 people, 7 people, 9 people etc. play simultaneously.

The beneficial effects of the utility model are: can differ for weight and use when bigger two players or two ends number do not wait, can in teaching, reach the aims of education of lever balance, make seesaw give full play to its due function of use,

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of the utility model embodiment.

Fig. 3 is the second example structure schematic diagram of the present utility model.

Among the figure: 1 for sitting saddle, and 2 is handrail, and 3 is balance plate, and 4 is pin-and-hole, and 5 is the hurdle frame, and 6 is pin-and-hole, and 7 is base, and 8 is tooth bar, and 9 is tooth bar, and 10 is pivot, and 11 is screw.

The specific embodiment

Referring to accompanying drawing, the utility model includes base 7, balance plate 3, sits saddle 1, it is characterized in that: there is tooth bar 9 bottom surface of balance plate 3, have on the base 7 with balance plate 3 on the tooth bar 8 that matches of tooth bar 9, balance plate 3 is placed on the tooth bar 8 of base 7 by tooth bar 9, the hurdle frame 5 that has the scantling with balance plate 3 to match on the base 7, and with fixture that base 7 is fixing with balance plate 3.By the different riding positions of the tooth bar on the adjustment plate 39 on the tooth bar 8 of base 7, the i.e. length on adjustable and balancing plate 3 both sides.

In first embodiment of the present utility model, as shown in Figure 1, described fixture adopts the bearing pin fixture: there are several pin-and-holes 4 both sides of balance plate 3, the both sides of hurdle frame 5 have with balance plate 3 both sides on the pin-and-hole 5 that matches of pin-and-hole 4, balance plate 3 is connected with bearing pin by pin-and-hole (4,5) with base 7.So just can reach the asymmetric effect of the length that makes the balance plate both sides by the different balance plate pin-and-hole of pin-and-hole pin joint with base.

In second embodiment of the present utility model, described as shown in Figure 3 fixture adopts screw fixing device: screw 11 is arranged at the top of hurdle frame 5, and balance plate 3 is fixing by screw 11 with base 7.So just can with screw 11 base 7 be fixed in the diverse location of balance plate, reach the asymmetric effect of the length that makes the balance plate both sides by the shifting balance plate.

In order to pre-determine the fixed position, can on balance plate, engrave scale, calculate the relative position of base by the number of playing on both sides.The utility model embodiment is 10 big five equilibriums, divides 10 little evenly divideds in each big five equilibrium again, learns and the cognition lever principle with the length computation on balance plate both sides so that the student can pass through number (weight).

In embodiment of the present utility model, sit saddle 1 as shown in Figure 2 and be the strip row stool vertical with balance plate 3, on this row's stool, can sit a plurality of trip players.

In the more place of trip player, for example in the school, balance plate can be made fixing unequal length on fulcrum (centring point or pivot) both sides, promptly balance plate is 1: 2 in the ratio of fulcrum two edge lengths, 2: 3,3: 4,4: 5 etc., to adapt to 3 people, 5 people, 7 people, 9 people play simultaneously.

Claims

1, a kind of asymmetric seesaw lever, include base (7), balance plate (3), sit saddle (1), it is characterized in that: there is tooth bar (9) bottom surface of balance plate (3), have on the base (7) with balance plate (3) on the tooth bar (8) that matches of tooth bar (9), balance plate (3) is placed on the tooth bar (8) of base (7) by tooth bar (9), the hurdle frame (5) that has the scantling with balance plate (3) to match on the base (7), base (7) and balance plate (3) is fixing by hurdle frame (5) with fixture.

2, asymmetric seesaw lever according to claim 1, it is characterized in that described fixture adopts the bearing pin fixture: there are several pin-and-holes (4) both sides of balance plate (3), the both sides of hurdle frame (5) have with balance plate (3) both sides on the pin-and-hole (5) that matches of pin-and-hole (4), balance plate (3) and base 7) fix with bearing pin by pin-and-hole (4), (5).

3, asymmetric seesaw lever according to claim 1, it is characterized in that described fixture adopts screw fixing device: screw (11) is arranged at the top of hurdle frame (5), and balance plate (3) is fixing by screw (11) with base (7).

4, asymmetric seesaw lever according to claim 1 is characterized in that: sitting saddle (1) is the strip row stool vertical with balance plate (3).