CN202631092U

CN202631092U - Removable windproof device for precision balance and precision balance

Info

Publication number: CN202631092U
Application number: CN 201120504872
Authority: CN
Inventors: 奥托·库尔曼
Original assignee: Sartorius AG
Current assignee: Sartorius Weighing Technology GmbH
Priority date: 2010-12-08
Filing date: 2011-12-07
Publication date: 2012-12-26
Anticipated expiration: 2021-12-07
Also published as: DE102010061096B4; DE102010061096A1

Abstract

The utility model relates to a removable windproof device for a precision balance. The windproof device comprises a front plate (10), a back plate (12), a holding frame (14) which is placed on the front plate (10) and the back plate (12), two side plates (24) which are movably located in the holding frame (14) and adjoined at the front plate (10) and the back plate (12), and tensioning device (30, 32) which are provided to pressurize the holding frame (14) along downward vertical direction. The utility model further relates to a precision balance. The precision balance comprises a balance disc, a bottom disc (5) which surrounds a channel (7) of the balance disc, and such windproof device, wherein the bottom disc (5) is provided with an accommodating part for the front plate and/or the back plate. The windproof device can be easily assembled and disassembled as much as possible; the windproof device is made up of single components which can be cleaned easily; and with the device, the line of sight can be thrown into the internal space surrounded by the windproof device without barrier as much as possible.

Description

The removable wind-proof device and the precision steelyard that are used for precision steelyard

Technical field

The utility model relates to the removable wind-proof device that is used for precision steelyard.

Background technology

Many knowledges that are total to are mounted with wind-proof device on precision steelyard, this wind-proof device is around the space of the scale pan top of scale.The example of this type of wind-proof device is seen DE 94 07 984U and EP 1 195585A.About its basic function, just avoid perhaps also having heat radiation that the weighing process is exerted an influence through air movement, electrostatic attraction, the embodiment of wind-proof device known in the prior art has been gratifying just.Yet what additional requirement just can not be optimized is met, and these have often proposed wind-proof device since requiring recently.Especially wind-proof device should be able to as far as possible simply be installed and remove, and should be made up of single parts that can fine cleaning, and should realize that in addition sight line do not put in the inner space that is surrounded by wind-proof device to blocked as far as possible.

The utility model content

The task of the utility model is, creates the wind-proof device that is used for precision steelyard that satisfies above-mentioned requirements.

For solving this task; Be provided with the removable wind-proof device that is used for precision steelyard according to the utility model, this wind-proof device has header board, backboard, lie in maintenance framework on header board and the backboard, be movably received within the framework and in abutting connection with two side plates of header board and backboard and the tension equipment that framework is vertically loaded downwards.Have very high stability according to the wind-proof device of the utility model based on keeping framework, do not enter into wind-proof device inside, promptly enter into the scale space and do not obstruct the view.Because the member of wind-proof device need only be inserted in together, so wind-proof device can also be installed with lower consumption.Because there is the less rib that can in cleaning, bring problem, single parts all can clean after dismounting without a doubt.

Preferred following the setting, that is, backboard forms through two branch plates, and these two branch plates contact along line, and the distance in abutting connection with the edge of side plate and wind-proof device inner space mid point apart from the score plate of this line and wind-proof device inner space mid point is farther.Because avoided now tumbling around header board and backboard according to the framework of parallelogram mode, the branch plate that this mode is installed has improved the stability of wind-proof device.

The alternative setting as follows, that is, backboard is crooked, wherein, crooked midpoint is on the side of the inner space of wind-proof device.Under the situation of this design proposal, also obtain backboard and then anti-tumbling property whole wind-proof device.

Preferred following the setting promptly, held top board in framework.This has realized, also sees in the space that is surrounded by wind-proof device from above.

This preferred following setting, that is, top board is removable in framework, thereby this top board can be opened.This has just realized entering into from the top path in the space that is surrounded by wind-proof device.

On top board, preferably be provided with handle, this handle abuts on the tension equipment in the position that top board has been opened fully.In this design proposal, no longer need be used for avoiding top board to move so that independent stop member that from framework, drop out, that be used for top board relative to framework too widely.

Preferred also following the setting, that is, each in the side plate is provided with handle, and this handle abuts on the tension equipment in the open site fully of respective side panels.Thus, also no longer independent stop member must be set for side plate.

Tension equipment preferably comprises and has the support that lies in the centre portion on the framework, and comprises two side legs, and these two side legs are respectively equipped with anchor portion (Verankerungsende).The easy structure that obtains thus of tension equipment is brought low manufacturing cost and easy operation.

Anchor portion can be embodied as opening, keeps pin can hang in this opening, perhaps can be embodied as crooked supporting leg, and this crooked supporting leg can be hung and keep in the groove.With these two easy design proposals of geometry, tension equipment can for example be placed on the chassis with little consumption.

According to preferred embodiment, be provided with tolerance compensating, tolerance compensating can be about the altimetric compensation tolerance of header board and/or backboard and top board.The tolerance compensating of this type of integration has been simplified the installation of wind-proof device.

Tolerance compensating can be embodied as the spring section, and this spring section is arranged in two side legs.When tension equipment is made of metal, just can for example use the elasticity of tension equipment self for this reason.

For locking tension equipment at the top, locking groove can be set on the top, the centre portion of tension equipment can sink in this locking groove.This has guaranteed the simple locking of tension equipment, and similar clamp connects.

Alternative, tolerance compensating can be embodied as the oblique placed side on the framework, and on this placed side, centre portion can lock with different height.Also simply installed in this embodiment; Centre portion is pushed open on oblique placed side simply, until reaching desirable pretension.

On centre portion, can be provided with at least one shutdown device, tension equipment can utilize this shutdown device to be locked on the framework.This has been avoided the be not intended to slip of centre portion from framework.

Shutdown device especially can be embodied as elasticity stop contact pin at this, and this stop contact pin can be embedded in the stop engaging piece on the framework.This type of stop engaging piece has been realized the meticulous setting of the pretension of tension equipment.

Embodiment according to the utility model is provided with the chassis, and this chassis is provided with the accommodation section that is used for header board, the fixedly moulding portion that is used for the mobile guide portion of two side plates and is used for the anchor portion of tension equipment.The chassis makes wind-proof device complete as follows, that is, wind-proof device for example can provide as installation kit, so that the precision steelyard that will be in use fit on wind-proof device additionally.For this purpose, with the chassis around the accommodation section arranged around that is used for the precision steelyard scale pan, and next installing plate and framework.

Also provide a kind of and had the scale pan, around the chassis of the passage that is used for the said scale pan with according to precision steelyard according to the wind-proof device of the utility model, wherein, said chassis has the groove that is used for header board and/or backboard.

According to the utility model, precision steelyard also is provided with the scale pan, round the chassis of the scale pan with have header board, backboard, two side plates and the wind-proof device that keeps framework.Also under the situation of the base plate in being incorporated into precision steelyard, obtain above-mentioned advantage about easy installation, dismounting, cleaning possibility and good sight line situation ground.

Description of drawings

The utility model will combine different embodiment to explain subsequently, and these embodiments are shown in the drawings.Wherein:

-Fig. 1 illustrates the stereographic map according to the wind-proof device of first embodiment;

-Fig. 2 illustrates the wind-proof device by Fig. 1 with second stereographic map;

-Fig. 3 illustrates the details III of Fig. 1;

-Fig. 4 illustrates the details IV of Fig. 1;

-Fig. 5 illustrates the wind-proof device by Fig. 1 with exploded view;

-Fig. 6 illustrates the wind-proof device according to second embodiment with stereographic map;

-Fig. 7 illustrates the wind-proof device by Fig. 6 with schematic top view;

-Fig. 8 illustrates the details VII by Fig. 6; With

-Fig. 9 illustrates the details VIII by Fig. 6.

Embodiment

In Fig. 1 to Fig. 5, showed wind-proof device according to first embodiment.Wind-proof device is installed on the chassis 5, and the passage 7 that this chassis will be used for the precision steelyard scale pan surrounds.Precision steelyard is not done further introduction at this.Chassis 5 can be the fixing parts of precision steelyard or can also be annex that this annex is settled or is not placed on the precision steelyard according to the difference of customer demand.

Suit header board 10 and backboard 12 on the chassis.Header board 10 be rectangle with smooth, and be inserted into (see figure 5) in the groove 11 on chassis 5 with its lower limb.At this, backboard 12 is assembled into by two

branch plate

12a, 12b (especially referring to Fig. 2), and these two branch plates contact along center line M.Angle between two

branch plate

12a, 12b can be 120 ° a dimensions.The distance on the plane of center line M and header board 10 is greater than the distance on the plane of the lateral edges and the header board 10 that are positioned at the outside of a minute plate 12a, 12b.Another kind of statement is: observe away from the passage 7 that is used for the scale pan, backboard 12 is that spill is implemented.Two

branch plate

12a, 12b also are contained in 13 li of grooves in the chassis.At this, the groove 11 that is used for header board 10 be used for two branch plate 12a of backboard 12, the groove 13 of 12b is adjusted the thickness of plate as follows,, can plate preferably not had the insertion of play ground there that is.

To keep framework 14 cover to install on header board 10 and the backboard 12, this maintenances framework 14 is by two longitudinal bracings 16 of layout and form perpendicular to the cross-brace 18 that longitudinal bracing is arranged of being parallel to each other.Two longitudinal bracing 16 12 extensions from header board 10 towards backboard.In the scope of header board 10, on the end of each longitudinal bracing 16, all be provided with and insert the accommodation section, the superolateral edge section of header board 10 can be inserted in this insertion accommodation section.In the scope of cross-brace 18, be that the coboundary of two

branch plate

12a, 12b is provided with the insertion accommodation section.Between two longitudinal bracings, be furnished with top board 20, this top board can keep framework 14 from off-position shown in Figure 1 in two shifting chutes 23 relatively, moves towards open site along the direction of arrow P with going.Be provided with handle 22 for the manipulation of simplifying top board 20, this handle is arranged in the edge that faces header board 12 of top board 20 here.Two vertical side arrangement at wind-proof device have movably side plate 24.For this purpose, for each side plate 24 is provided with shifting chute 26, in this shifting chute, respective side panels 24 can and move between open site (seeing Fig. 1 and Fig. 2) in off-position (abutting on the header board 10 at off-position latus inframedium) in chassis 5.Be similar to top board 20 that kind, each side plate 24 is provided with handle 28, and this handle has been simplified mobile.In order to guide side plate 24, keeping on the framework 14, that is to say in the downside of two longitudinal bracings 16 and also be provided with two shifting chutes for side plate.

In order to keep framework 14 to lock onto on the plate of wind-proof device and be provided with tension equipment, this tension equipment is embodied as the tensioning support that has centre portion 30 and two side legs 32 at this.Each side leg is provided with the end section 34 through bending, and this end section can be hung in the maintenance groove 36 of bending, and this maintenance groove is arranged on the chassis 5.In addition, the tensioning support is provided with the tolerance compensating of spring section 38 forms of two crank-like, and one of them is arranged in neighbouring (the seeing Fig. 3 especially) of crooked end section 34, and another is arranged in from the transitional region of side leg 32 and centre portion 30.For keeping locking tensioning support on the framework 14, keep framework to be provided with two locking grooves 40 in the side above that, these locking grooves are constructed from cross-brace 18 towards the transitional region of two longitudinal bracings 16.

Wind-proof device can very simply and not installed by instrument efficiently.At first header board 10 and two

branch plate

12a, 12b are put on the chassis 5.Suit keeps framework 14 then, and top board 20 can be pushed in this maintenance framework.In addition, push two side plates 24.Next settle tension equipment, what this tension equipment at first tilted penetrates into (see figure 5) in two maintenance grooves 36 with its two end section 34.Then, tension equipment upwards is pivoted to and keeps on the framework 14.At this, this tension equipment trackslips on tilting guide surface 42, and spring section 38 receives the elasticity pretension, snaps at last in the locking groove 40 until centre portion 30.Simultaneously, side leg reaches to recline and keeps the stop member 44 on the framework.Obtain the stable system of mechanics in this way, in this system, with keep framework 14 on the position between center line M and the header board 10 vertically elasticity load on chassis 5 relatively to the ground that goes down.At this, the tensioning support is arranged in such a way, that is, it is with the stop member that acts on

handle

22,28.

Nature can be done following understanding; Promptly; Arrange as follows with side plate 24 and for the shifting chute that guides it to be provided with; That is, stop by header board 10 and backboard 12, and side plate 24 can have basically no frictionally mobile between chassis 5 and maintenance framework 14 by the tension that the tensioning support is applied in vertical direction.

Header board 10, backboard 12, top board 20 and side plate 24 are processed by glass or transparent plastic, wherein, under the situation of plastics, must be noted that, the common relatively detersive of these plastics will have enough resistivities.Keep framework 14 to implement by plastics, and the tensioning support and wherein between section 30 preferably be made of metal with side leg 32.All member can be easy to remove once more and clean subsequently, wherein these members is for example dropped in the industrial washing.

In Fig. 6 to Fig. 9, showed second embodiment.To use identical Reference numeral for those known in the first embodiment members, and with regard to this respect, consult top explaination.

Second embodiment is different from first embodiment through the design proposal of backboard 12 on the one hand.In second embodiment, use continuous backboard 12, this backboard is crooked enforcement.At this, backboard 12 following mode ground layouts, that is, and its crooked directed outside (see figure 7); What will show in addition is that crooked mid point is positioned at wind-proof device inside.Yet this does not mean that plate must implement with constant bending.

For the resulting mechanical stability of non-flat design scheme by the backboard 12 in two embodiments is described; At these two tipping line K that briefly draw; When keeping framework 14 to move along the direction that is parallel to side plate 24, backboard 12 is necessarily tumbled around these tipping lines.Because big distance between two tipping lines is related to vertical pretension and is obtained high stability.

Difference between first embodiment and second embodiment is the design proposal of tension equipment on the other hand.Be different from that kind in the first embodiment, tension equipment does not have the spring section in second embodiment.Tolerance compensating is here realized as follows, that is, keep framework 14 to be provided with the placed side 46 of two tilt distribution, and the centre portion 30 of tensioning support lies on these placed sides.Centre portion 30 is pushed open on the placed side at this, until reaching desirable pretension.In this position, centre portion 30 keeps through shutdown device, and this shutdown device is made up of elasticity stop contact pin 48, and this stop contact pin is embedded in the stop engaging piece 50 that keeps on the framework 14.Be provided with two operation contact pin 52 easily for the operation that makes the tensioning support becomes, these operation contact pin make the tensioning support push open on the maintenance framework and unclamping of detent becomes easy.

On the end that deviates from centre portion 30 of two side legs 32, be respectively arranged with opening 54, side leg 32 can with these openings keep pin 56 places hang into, keep pin to be placed on the chassis 5 these.At this, opening 54 is so implemented on pin 56 geometry with keeping, that is, after the tensioning support is installed, avoid side leg 32 from keeping landing unintentionally on the pin 56.

Because the tensioning support needn't have spring performance in second embodiment,, for example implement by thin sheet metal or plastics so this tensioning support can be implemented by linearly extended flat material.

The advantage that obtains by using nonplanar backboard 12 is that when side plate 24 was arranged in the position of having opened fully at them, comparing them was situation of flat back plate, the outstanding backward degree much less that surpasses wind-proof device.This is visible in Fig. 7.When side plate 24 had been opened fully, side plate extended to the right from stop member with its length L basically, and this stop member is confirmed through the handle on the side leg 32 of the tensioning support that reclines 28.Yet at this, side plate only stretches out the back edge on chassis with much little length I very.If use flat back plate 12, the size of length I approximate length L so.This advantage not only relates to first embodiment but also relate to second embodiment.

The Reference numeral table

Claims

1. the wind-proof device that can take off that is used for precision steelyard, said wind-proof device have header board (10), backboard (12), lie in the maintenance framework (14) on said header board (10) and the said backboard (12), the tension equipment (30,32) that can be contained in two side plates (24) in the said maintenance framework (14) and adjacency said header board (10) and said backboard (12) movably and said maintenance framework (14) is vertically loaded downwards.

2. wind-proof device according to claim 1; It is characterized in that; Said backboard (12) forms through at least two branch plates (12a, 12b); Plate contacted along line in said minute, the distance of said line and the mid point of the inner space of said wind-proof device than said minute plate (12a, 12b) the distance of mid point of inner space of edge and said wind-proof device of the said side plate of adjacency (24) farther.

3. wind-proof device according to claim 1 is characterized in that, said backboard (12) is crooked, and wherein, crooked mid point is positioned on the side of inner space of said wind-proof device.

4. according to each described wind-proof device among the claim 1-3, it is characterized in that, in said maintenance framework (14), accommodate top board (20).

5. wind-proof device according to claim 4 is characterized in that, said top board (20) can move in said maintenance framework (14), thereby can said top board be opened.

6. wind-proof device according to claim 5 is characterized in that, said top board (20) is provided with handle (22), and said handle abuts in the position that said top board (20) has been opened fully on the said tension equipment (30,32).

7. according to each described wind-proof device among the claim 1-3; It is characterized in that; In the said side plate (24) each is provided with handle (28), and said handle abuts in the position of having opened fully of corresponding said side plate (24) on the said tension equipment (30,32).

8. according to each described wind-proof device among the claim 1-3; It is characterized in that; Said tension equipment has tensioning support and two side legs (32) that band lies in the centre portion (30) on the said maintenance framework (14), and said side leg is respectively equipped with anchor portion.

9. wind-proof device according to claim 8; It is characterized in that said anchor portion is opening (54), keep pin (56) can hang in the said opening; Perhaps said anchor portion is crooked end section (34), and said end section can be hung and kept in the groove (36).

10. wind-proof device according to claim 8 is characterized in that, is provided with tolerance compensating, and said tolerance compensating can be about the altimetric compensation tolerance of said header board (10) and/or said backboard (12) and framework (14).

11. wind-proof device according to claim 10 is characterized in that, said tolerance compensating is embodied as spring section (38), said spring section is arranged in two said side legs (32).

12. wind-proof device according to claim 11 is characterized in that, said framework (14) is provided with locking groove (40), and the said centre portion (30) of said tension equipment (30,32) can sink in the said locking groove.

13. wind-proof device according to claim 10 is characterized in that, said tolerance compensating is embodied as the oblique placed side (46) on said maintenance framework, said centre portion (30) can be locked on the said placed side with differing heights.

14. wind-proof device according to claim 13 is characterized in that, said centre portion (30) is provided with at least one shutdown device (48), and said tension equipment (30,32) can utilize said shutdown device to be locked on the said maintenance framework (14).

15. wind-proof device according to claim 14 is characterized in that, said shutdown device is embodied as elasticity stop contact pin (48), said stop contact pin can be embedded in the stop engaging piece (50) on the said maintenance framework (14).

16. according to each described wind-proof device among the claim 1-3; It is characterized in that; Be provided with chassis (5), said chassis is provided with accommodation section, mobile guide portion (26) that is used for two said side plates (24) that is used for said header board (10) and the fixedly moulding portion (36,56) that is used for the said anchor portion of said tension equipment (30,32).

17. have the scale pan, around the chassis (5) of the passage (7) that is used for the said scale pan with according to each the precision steelyard of wind-proof device of claim 1 to 15, wherein, said chassis (5) have the groove (11,13) that is used for header board (10) and/or backboard (12).