Balance teaching aid

Abstract

The utility model provides a balance teaching aid which comprises a support column, the top end of the support column is provided with a frame groove and a movable groove, a sliding piece is erected at the position of the frame groove, a cross beam which moves in the movable groove is arranged in the sliding piece in a sliding mode, trays are hung on the left side and the right side of the cross beam, first weights are placed on the trays, and the first weights are arranged on the first weights. And a second weight capable of being superposed is arranged on the cross beam. The weight combination device has the advantages that the mode of adding the first weight on the tray and the mode of overlapping the second weight on the cross beam are adopted, so that the weights are combined flexibly.

Description

TECHNICAL FIELD

[0001] The utility model relates to physical experiment teaching technical field, especially a balance teaching aid. BACKGROUND

[0002] Balance is the device commonly used in physical experiment, often used to demonstrate the principle of lever or used for the weighing of goods. The balance used for experiment basically adopts the weight as the weighing conversion, places the tray on both sides of the balance, places the weight on the tray, and then moves the position of the tray to demonstrate the principle of lever. The way is single and the tray is easy to tilt and drop the weight. SUMMARY

[0003] Therefore, the utility model aims at overcoming the defects in the prior art, and provides a balance teaching aid.

[0004] The utility model provides a balance teaching aid, including support 1, the top of support 1 is equipped with frame slot, movable slot, the frame slot is equipped with sliding piece 2, the sliding piece 2 is slidably equipped with the crossbeam 3 movable in frame slot, the left and right sides of crossbeam 3 are hung with tray 5, the tray 5 is placed with first weight 6, the crossbeam 3 is provided with the second weight 7 that can be stacked.

[0005] Further, the sliding piece 2 is composed of the sliding block 2.1 connected with the frame blocks 2.2 symmetrically arranged on the front and back sides, the frame blocks 2.2 are arranged on the frame slot, the top of the sliding block 2.1 is provided with the clamping strip 2.3, and the bottom of the clamping strip 2.3 is provided with the protrusion.

[0006] Further, the crossbeam 3 is provided with the clamping groove 3.1 for clamping the clamping strip 2.3 equidistantly along the length direction of the crossbeam 3, and the front end of the crossbeam 3 is provided with the square hole 3.2 for clamping the second weight 7 equidistantly along the length direction of the crossbeam 3.

[0007] Further, the second weight 7 is composed of the square block connected with the clamping column on the front side, the square block is provided with the square groove on the side except the clamping column, and the clamping column can be clamped in the square hole 3.2 or the square groove.

[0008] Further, the left and right sides of the upper end of the crossbeam 3 are symmetrically provided with the hanging grooves 3.3, the hooks 4 are hung at the hanging grooves 3.3, and the tray 5 is arranged on the hooks 4.

[0009] Further, the support 1, the sliding piece 2, the crossbeam 3, the hook 4, the tray 5 and the second weight 7 are all made of plastic material.

[0010] Further, the number of the second weight 7 is greater than or equal to 6 and less than or equal to 20.

[0011] The utility model discloses the advantages are in: both have the way of tray plus first weight, and the way of second weight of superposition at crossbeam, to flexibly combine weight, slide piece installation, dismantle convenient, the convex can be stuck card slot, and the card strip has elasticity, respectively place the weighing object, weight on the tray of both sides, adjust the left and right positions of crossbeam, make the balance tilt to one side, and the user can put first weight on the tray of both sides, or the user can superimpose second weight at the both sides of crossbeam, the card slot of equidistance setting makes the card set position more accurate and regular, help to realize accurate positioning and adjustment, realize the superposition and combination of second weight. The user can flexibly select to set up or superimpose second weight alone according to different weight demand, and the hanging groove setting can prevent the falling of hook and tray, and the plastic material can reduce weight and reduce cost. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is the plan view of the utility model;

[0015] Figure 4 It is the structure schematic diagram of the slide piece of the utility model. DETAILED DESCRIPTION

[0016] The utility model embodiment will be introduced in detail below in combination with the drawings.

[0017] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further explained in detail below in combination with the drawings and example. It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0018] Refer to Figures 1 to 4The utility model provides a balance teaching appliance, it includes support 1, the top of support 1 is equipped with frame groove, movable slot, the frame groove is erected with sliding piece 2, sliding piece 2 is connected with the symmetrically arranged frame block 2.2 of front and back two sides by sliding block 2.1, frame block 2.2 is erected in frame groove, sliding piece installation, dismounting is convenient, the top of sliding block 2.1 is provided with clamping strip 2.3, the bottom of clamping strip 2.3 is provided with protrusion, protrusion can be clamped with clamping groove, clamping strip has elasticity, sliding piece 2 is slidably fitted with crossbeam 3 movable in movable slot, the left and right sides of crossbeam 3 are all hung with tray 5, first weight 6 is placed on tray 5, crossbeam 3 is provided with the second weight 7 of stackable, can flexibly combine weight, can accurately adjust total weight according to different experiments or use demand, greatly expands the function, can be applicable to a variety of need different weight loading scenes, such as lever experiment, weighing system etc. The weighing object, weight is placed on the tray on both sides respectively, adjust the left and right positions of crossbeam, make the balance incline to one side, the user can place first weight on the tray on both sides, make the balance keep balance, or the user can stack second weight (uninstall tray) on the different positions of crossbeam, make the balance keep balance, can directly demonstrate lever, weighing principle.

[0019] Reference Figure 1 、 Figure 2 , the length direction of crossbeam 3 is equidistantly provided with the clamping groove 3.1 of clamping strip 2.3, the length direction of the front end of crossbeam 3 is equidistantly provided with the square hole 3.2 of the second weight 7. The equidistantly arranged clamping groove makes the clamping position more accurate and regular, which helps to realize accurate positioning and adjustment. The equidistantly arranged square holes provide multiple stable clamping positions for the second weight, so that the user can accurately select the clamping position of the second weight according to the required weight, realizing the combination of different weights.

[0020] The second weight 7 is composed of a front square block connected to a rear clamping column. Square grooves are formed on the sides of the square block except the side of the clamping column. The clamping column can be clamped in the square hole 3.2 or the square groove. The second weight can be stacked and combined. The user can flexibly select to clamp the second weight individually or to stack them according to different weight requirements, increasing the diversity of weight combination.

[0021] Symmetrical hanging grooves 3.3 are formed on the left and right sides of the upper end of the crossbeam 3. Hooks 4 are hung at the hanging grooves 3.3, and the trays 5 are arranged on the hooks 4. The hanging grooves prevent the hooks and trays from falling off.

[0022] The support 1, sliding piece 2, crossbeam 3, hook 4, tray 5, and second weight 7 are all made of plastic material. Plastic material can reduce weight and cost.

[0023] The number of second weights 7 is greater than or equal to 6 and less than or equal to 20. Preferably, the number of second weights is 10.

[0024] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A balance teaching aid, characterised in that: Including the prop, the top of the prop is provided with frame slot, movable slot, the frame slot is provided with slide, the slide is provided with crossbeam which is movable in the movable slot, the left and right sides of the crossbeam are hung with tray, the tray is placed with first weight, the crossbeam is provided with second weight which can be stacked.

2. A balance teaching aid as claimed in claim 1, wherein: The slide is composed of slide block which is symmetrically arranged on the front and back of the frame block, the frame block is provided in the frame slot, the top of the slide block is provided with clamping strip, the bottom of the clamping strip is provided with protrusion.

3. A balance teaching aid as claimed in claim 2, wherein: The crossbeam is provided with clamping slot which can clamp the clamping strip along the length direction, the front end of the crossbeam is provided with square hole which can clamp the second weight along the length direction.

4. A balance teaching aid as claimed in claim 3, wherein: The second weight is composed of front square block which is connected with rear clamping column, the square block is provided with square slot except one side of the clamping column, the clamping column can be clamped in the square hole or the square slot.

5. A balance teaching aid as claimed in claim 1, wherein: The left and right sides of the upper end of the crossbeam are symmetrically provided with hanging slot, the hanging slot is hung with hook, the tray is provided in the hook.

6. A balance teaching aid as claimed in claim 5, wherein: The prop, the slide, the crossbeam, the hook, the tray and the second weight are all made of plastic material.

7. A balance teaching aid as claimed in claim 1, wherein: The number of the second weight is greater than or equal to 6 and less than or equal to 20.

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