CN207095664U - A kind of experiment balance - Google Patents

Abstract

A kind of experiment balance, the balance include base, U-shaped support, scale plate, counter-jib, support pedestal, pallet.The support pedestal is arranged at the bottom of base, and U-shaped support is arranged on base, and counter-jib is rotatably connected on U-shaped support by axostylus axostyle.The counter-jib is provided at both ends with tray rack, the tray rack is made up of tray rack bottom plate, slip limiting plate, fixing bolt, pallet stay hook is provided with slip limiting plate, the pallet is provided with the tray slots being engaged with pallet stay hook, pallet is fixed on tray rack by the cooperation of tray slots and the pallet stay hook.Balance provided by the utility model can improve the stability of pallet, shorten the Balance time, improve efficiency and the degree of accuracy of measurement.

Description

A kind of experiment balance

Technical field：It the utility model is related to a kind of laboratory measurement instrument, and in particular to a kind of Physical Experiment balance.

Background technology：Balance is widely used in middle school physical experiment as a kind of weighing apparatus, determines to be weighed by balance The weight of article.However, in actual use, counterweight, which is put into pallet, may cause the violent swing of balance, and then make pallet It is subjected to displacement, reduces measurement efficiency, influences the accuracy of measurement.Even, when weighing powder or particulate matter, the violent pendulum of balance It is dynamic that tested article may be made to depart from pallet, strong influence is caused to experiment.

In the prior art, CN205940721U discloses a kind of Physical Experiment balance, is limited by setting position-limited rack The activity space of balance overarm, reduces amplitude of fluctuation, and still, the technical scheme can not avoid overarm from being hit with position-limited rack to balance The physical damnification brought, it is likely to result in overarm after permanent use and bent.

CN206249713U discloses a kind of experiment balance, by setting buffer bar and cushion pad below balancing pole, Reduce the swing degree of balance, while improve balance efficiency, but such a design increases the heavy burden of balancing pole, and also both sides are buffered The weight of bar and cushion pad has high requirement, and when side, cushion pad is hit larger and when causing the surface damage to come off, meeting The balance of balance is had an impact.

Utility model content：

In view of this, the utility model is proposed.

The utility model provides a kind of experiment balance, the balance including base, U-shaped support, scale plate, counter-jib, Support pedestal, pallet.The support pedestal is arranged at the bottom of base, and U-shaped support is arranged on base, and counter-jib passes through axostylus axostyle It is rotatably connected on U-shaped support.Balanced pointers are vertically and fixedly provided with the counter-jib, at the rear end face of the U-shaped support It is provided with the scale plate of complex equilibrium pointer.The counter-jib front end, which is provided with, marks graduated weight linear meter, on counterweight club body It is provided with regulation shifting block.The counter-jib is provided at both ends with screw rod, on screw rod shaft activity be combined with adjusting nut.It is described flat Weighing apparatus arm is provided at both ends with tray rack, it is characterised in that the tray rack is by tray rack bottom plate, slip limiting plate, fixing bolt group Into, pallet stay hook is provided with slip limiting plate, the pallet is provided with the tray slots being engaged with pallet stay hook, support Disk is fixed on tray rack by the cooperation of tray slots and the pallet stay hook.

Further, limited post is provided with base.Preferably, limited post upper end sets limited post cushion pad.It is described slow Rushing pad can be made up of materials such as sponge, rubber.

Further, passage is provided with base, for accommodating limited post.Preferably, channel bottom is provided with cushion.Institute Stating cushion can be made up of materials such as sponge, rubber.

Further, the slip limiting plate is marked with scale.

Further, be provided with least two pallet stay hooks on each described tray rack, the quantity of tray slots with Location matches are in pallet stay hook.

Further, tray bottom is provided with the buffering plate made of elastomeric material, and the elastomeric material can be rubber Glue, sponge etc..

The beneficial effects of the utility model：

(1) by the fixation to balance on goods and services, the unstable of pallet during weighing and measured object is prevented, improves day Flat accuracy of measurement.

(2) by the setting of limited post, balance duration of oscillation in equilibrium process is reduced, improves the measurement effect of balance Rate.

(3) by the setting of slip limiting plate, it more easily can fix and remove pallet.

Brief description of the drawings：

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the front view of balance described in the utility model

Fig. 2 is the sectional view of the utility model base

Fig. 3 is the schematic diagram of the utility model pallet

Fig. 4 is the schematic diagram of the utility model tray rack

Fig. 5 is the schematic diagram that the utility model pallet is engaged with tray rack

Description of reference numerals

1st, base；11st, limited post；111st, limited post cushion pad；112nd, passage；1121st, cushion；2nd, U-shaped support；21、 Axostylus axostyle；3rd, scale plate；31st, balanced pointers；4th, counter-jib；41st, screw rod；411st, adjusting nut；42nd, weight linear meter；421st, regulation is dialled Block；43rd, tray rack；431st, fixing bolt；432nd, slip limiting plate；433rd, pallet stay hook；5th, support pedestal；6th, pallet；61、 Tray slots；62nd, buffering plate.

By above-mentioned description of reference numerals, with reference to embodiment of the present utility model, it can be more clearly understood and illustrate The technical solution of the utility model.

Embodiment

Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as The example of the consistent apparatus and method of some aspects being described in detail in appended claims, of the present utility model.

It is only merely for the purpose of description specific embodiment in the term that the utility model uses, and is not intended to be limiting this reality With new." one kind ", " described " and "the" of singulative used in the utility model and appended claims It is intended to include most forms, unless context clearly shows that other implications.It is also understood that term used herein " and/ Or " refer to and any or all may be combined comprising the associated list items purposes of one or more.

It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model, But these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not In the case of departing from the scope of the utility model, the first information can also be referred to as the second information, and similarly, the second information can also It is referred to as the first information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ... " or " in response to determining ".

The utility model will be described in detail by embodiment below.

The utility model provides a kind of Physical Experiment balance, referring specifically to Figure of description 1-5.The balance by base 1, U-shaped support 2, scale plate 3, counter-jib 4, support pedestal 5, pallet 6 form.Wherein, support pedestal 5 is arranged at the bottom of base 1, Make the keep level of base 1 of balance by high high adjustment, ensure the accuracy of measurement.The U-shaped support 2 is arranged on base 1, Counter-jib 4 is rotatably connected on U-shaped support 2 by axostylus axostyle 21.Balanced pointers 31 are fixed on the counter-jib 4, and with Counter-jib 4 to swing, the scale plate 3 for coordinating the balanced pointers 31 is provided with the rear end face of the U-shaped support 2, when When counter-jib 4 keeps balance, balanced pointers 31 point to the middle of scale plate 3.

Specifically, being provided with limited post 11 on base 1, there are the passage 112 for accommodating limited post 11, passage on the base 1 112 bottoms are provided with cushion 1121, as shown in Figure 2.When weighing, if the counter-jib 4 of balance swings up and down excessive, can contact To limited post 11, so as to play a part of the amplitude of fluctuation of limiting balance arm 4.The limited post 11 is in the pressure by counter-jib 4 When, downward displacement can be produced, and then cushion 1121 is extruded, the cushioning effect to counter-jib 4 is played, prevents that counter-jib 4 is violent Upspring after strong shock limited post 11, cause the unstable of weighed object.Preferably, the upper end of limited post 11 can also be set spacing Post cushion pad 111, further function as the stabilization to counter-jib 4, cushioning effect.

The front end of counter-jib 4 is provided with the graduated weight linear meter 42 of mark, and regulation is provided with the shaft of weight linear meter 42 Shifting block 421, when weighing, shifting block is adjusted when can adjust the balance of balance by mobile regulation shifting block 421, and pass through balance Scale corresponding to 421 calculates the weight of measured object.The counter-jib 4 is provided at both ends with screw rod 41, the bar of screw rod 41 Activity with it is combined with adjusting nut 411, before measured object is weighed, can be made by the movement to both ends adjusting nut 411 Balance reaches poised state.The counter-jib 4 is provided at both ends with tray rack 43, and the tray rack 43 is by tray rack bottom plate, slip Limiting plate 432, fixing bolt 431 form, and user can adjust the height of slip limiting plate 432 by loosening fixing bolt 431 Degree, then tighten fixing bolt 431 and be fixed, it is preferred that slip limiting plate 432 is marked with scale.The slip limiting plate 432 On be provided with pallet stay hook 433, the pallet stay hook 433 is engaged with the tray slots 61 on pallet 6, solid so as to play Determine the effect of pallet 6.

As shown in figure 3, the bottom of pallet 6 is provided with buffering plate 62, while protection pallet is played, can also slide The height regulation of limiting plate 432 ensures that pallet can be in contact with tray rack when inaccurate.Due to buffering plate 62 can deformation Characteristic so that pallet 6 can be fixed in certain altitude range for slip limiting plate 432, while the bottom of pallet 6 can To be in contact with tray rack 43.

Using day usually, first slip limiting plate 432 is tightly fastened on tray rack bottom plate, then passes through tray slots 61 with the cooperation of pallet stay hook 433, pallet 6 is fixed in tray rack 43, the height of regulation slip limiting plate 432, makes pallet 6 Bottom is in contact with tray rack 43, is weighed.After weighing terminates, fixing bolt 431 is loosened, control slip limiting plate 432 is horizontal To movement, tray slots 61 are made to depart from pallet stay hook 433, so as to remove pallet 6.

It should be pointed out that for the person of ordinary skill of the art, on the premise of the utility model principle is not departed from, Some improvement and modification can also be carried out to the utility model, these are improved and modification also falls into the utility model claims In protection domain.

Claims (6)

1. a kind of experiment balance, the balance includes base (1), U-shaped support (2), scale plate (3), counter-jib (4), balance Bearing (5), pallet (6), the support pedestal (5) are arranged at the bottom of base (1), and U-shaped support (2) is arranged on base (1), Counter-jib (4) is rotatably connected on U-shaped support (2) by axostylus axostyle, and balanced pointers are vertically and fixedly provided with the counter-jib (4) (31) scale plate (3) of complex equilibrium pointer (31), the counter-jib (4), are provided with the rear end face of the U-shaped support (2) Front end is provided with the graduated weight linear meter (42) of mark, and regulation shifting block (421), the counter-jib are provided with weight linear meter (42) shaft (4) be provided at both ends with screw rod (41), on screw rod (41) shaft activity be combined with adjusting nut (411), the counter-jib (4) two End is provided with tray rack (43), it is characterised in that：The tray rack (43) is by tray rack bottom plate, slip limiting plate (432), fixation Bolt (431) forms, and is provided with pallet stay hook (433) in slip limiting plate (432), the pallet (6) is provided with and pallet The tray slots (61) that stay hook (433) is engaged, pallet (6) pass through tray slots (61) and the pallet stay hook (433) Cooperation, be fixed on tray rack (43).

2. balance according to claim 1, it is characterised in that：Limited post (11) is provided with the base (1).

3. balance according to claim 2, it is characterised in that：Limited post (11) upper end sets limited post cushion pad (111)。

4. balance according to claim 1, it is characterised in that：Passage (112) is provided with the base (1).

5. balance according to claim 4, it is characterised in that：Passage (112) bottom is provided with cushion (1121).

6. balance according to claim 1, it is characterised in that：The slip limiting plate (432) is marked with scale.