CN202599510U

CN202599510U - Drainage structure of electronic scale

Info

Publication number: CN202599510U
Application number: CN 201220189078
Authority: CN
Inventors: 宗泽华; 赵力平; 王海涛
Original assignee: Ohaus Instruments Changzhou Co Ltd
Current assignee: Ohaus Instruments Changzhou Co Ltd
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-12-12
Anticipated expiration: 2022-04-27

Abstract

The utility model relates to a drainage structure of an electronic scale. The drainage structure of the electronic scale comprises a bottom seat, an upper cover connected with the bottom seat, and a weighing scale mounted on an upper bracket. A ring seat of the lower portion of the weighing scale is installed on a support of the upper bracket, the upper bracket is located on the outer side of the ring seat and provided with an annular drainage tank, and a water outlet at the bottom of the drainage tank is opposite to the bottom seat. The top face of the upper cover is provided with an annular groove and a support hole used for the support of the upper bracket to penetrate out, upper convex ribs of the outer side of the annular groove extend upwards to the inner side of the outer ring edge of the lower portion of the weighing scale, a hole port of the bottom of the annular groove is communicated with a drainage channel on the bottom seat, lower convex ribs of the upper cover extend inside the drainage tank of the upper bracket, and more than two drainage holes communicated with outside are arranged on the bottom seat. The drainage structure of the electronic scale overcomes the defects of an omniseal waterproof structure, can conveniently and timely discharge water entering into the electronic scale, improves working reliability of the electronic scale, and prolongs service life of the electronic scale.

Description

The discharge structure of electronic scales

Technical field

The utility model relates to a kind of discharge structure of electronic scales, belongs to the electronic scales technical field.

Background technology

Electronic scales is made up of scale body, LOAD CELLS, printed wiring board and instrument etc. usually.Because rainwater, dust, steam and harmful gas etc. all can influence the weighing accuracy and the serviceable life of electronic scales, thus usually LOAD CELLS and printed board are arranged in the pedestal, and through being installed in the cover plate on the pedestal and it being sealed.But the devices such as printed wiring board in the electronic scales are heater element; And electronic scales normally uses under low temperature or high temperature; Deposit under the environment temperature; And variation of ambient temperature is bigger, therefore can constantly produce condensate water between the inside and outside surface of scale body and on the printed wiring board, under the prerequisite of not taking electronic scales scale lid apart, is can't ponding be discharged outside the scale.After the electronic scales long-term work; Ponding in the scale is just cumulative, adds the abominable of environment for use, and condensate water will form the corrosion thing with some gases, dirt etc.; And cause the corrosion of scale body inner structure part and electric components; Can cause circuit breaker and structural member to rot, directly cause the damage of electronic scales, and have influence on the functional reliability and the serviceable life of electronic scales.

The waterproof construction of existing electronic scales all is an all-sealed structure basically, and critical piece comprises loam cake, base, the scale pan; Sealing rubber strip, snake abdomen rubber ring, waterproof ventilated membranes etc. sealed filling in sealing rubber strip between loam cake and the base before this; Add snake abdomen rubber ring between the loam cake and the scale pan and seal, on base, also will add waterproof ventilated membrane and regulate air pressure inside, cause complex structure; Manufacture difficulty is big, and not only manufacturing cost is high, and can have influence on the metering performance of electronic scales again.

Summary of the invention

The purpose of the utility model is the deficiency that overcomes hermetically sealed waterproof construction, can be conveniently with the discharge structure that gets into the timely electronic scales of discharging of water in the scale body.

The utility model is that the technical scheme that achieves the above object is: a kind of discharge structure of electronic scales; Comprise base, the loam cake that is connected with base and be installed in the scale pan on the bracket; It is characterized in that: the ring seat of scale pan bottom is installed on the bearing of bracket; The arranged outside that bracket is positioned at the ring seat has annular rhone, and the apopore and the base of rhone bottom are relative; Said upper cover top surface has annular groove and is used for the bearing hole that the bracket bearing passes; The last convex tendon in the annular groove outside extends upward to the outer annular edge of scale pan bottom inboard; The aperture of annular groove bottom communicates with the drainageway on the base; The following convex tendon of loam cake extends in the rhone of bracket, has more than two the osculum with exterior on the base.

The utility model is provided with annular groove last covering, because the last convex tendon in the annular groove outside is arranged in the outer annular edge of scale pan bottom, can make to form staggered close palace hermetically-sealed construction between the scale pan and the loam cake, gets in the scale body so can prevent most of water.And can flow in the annular groove, and discharge the scale external through the aperture and the drainageway on the base that are arranged on the annular groove bottom when getting into the interior water of loam cake.Moreover the following convex tendon that covers on the utility model extends in the rhone of bracket, through on the following convex tendon and the bracket that cover be crisscross arranged; Further play resistance effect to form the Mi Gong sealing; Can drain into the base bottom through rhone with flowing into the interior water of bracket, discharge through the osculum on the base, this osculum also can be discharged the condensate water in the base in addition; So the utility model is through many places dash and discharge structure; Can all discharge by the water that the scale body is inner, can reduce corrosion, improve the functional reliability and the serviceable life of electronic scales structural member in the scale body and electric components.The utility model need not the O-ring seal sealing, can not influence measuring accuracy, can simplify assembly technology, reduces parts, has improved production efficiency, reduces the cost of product.

Description of drawings

Below in conjunction with accompanying drawing the embodiment of the utility model is made further detailed description.

Fig. 1 is the synoptic diagram of the electronic scales of the utility model.

Fig. 2 is an A-A sectional structure synoptic diagram among Fig. 1.

Fig. 3 is a perspective view of removing the scale pan among Fig. 1.

Fig. 4 is the structural representation that Fig. 1 removes loam cake.

Fig. 5 is the backsight structural representation of Fig. 1.

The 1-scale pan wherein, 11-encircle seat, ring limit in the 12-, 13-outer annular edge, 2-loam cake, convex tendon under the 21-; The last convex tendon of 22-, 23-annular groove, 24-bearing hole, 25-aperture, 3-scale pin, 4-base; The 41-drainageway, 42-osculum, 43-drip tray, 44-water delivering orifice, 45-scale pin mounting hole, 46-second osculum; The 5-LOAD CELLS, 6-bracket, 61-bearing, 62-rhone, 7-battery cover, 71-osculum.

Embodiment

See shown in Fig. 1～5; The discharge structure of the utility model electronic scales comprises base 4, the loam cake 2 that is connected with base 4 and is installed in the scale pan 1 on the bracket 6 that the ring seat 11 of the scale pan 1 bottom is installed on the bearing 61 of bracket 6; Bracket 6 is connected with the load side of LOAD CELLS 5; The fixation side of LOAD CELLS 5 is connected with base 4, through the scale pan 1 and bracket 6 weight information that receives is passed to LOAD CELLS 5, measures through LOAD CELLS 5.See shown in Fig. 2～4; The arranged outside that the utility model bracket 6 is positioned at ring seat 11 has annular rhone 62; The apopore of rhone 62 bottoms is relative with base 4, can through the rhone 62 on the bracket 6 with the water that flows into after rhone 62 is collected, the osculum 42 on base 4 is discharged.See shown in Figure 4; The apopore bottom of the rhone 62 of the utility model bracket 6 is relative with the drip tray 43 of base 4; Drip tray 43 is provided with water delivering orifice 44, and base 4 bottoms also have second osculum, and second osculum communicates with osculum 71 on the battery cover 7 that is installed in base 4 bottoms; The water of rhone 62 discharges is flow to second osculum of base 4 bottoms through water delivering orifice 44; Osculum on battery cover 7 71 is discharged again, and simultaneously that it is inner condensate water is discharged, and makes water can not get into base 4 and is used to install LOAD CELLS 5 and area of cell.

See Fig. 2, shown in 3, the utility model loam cake 2 end faces have annular groove 23 and are used for the bearing hole 24 that bracket 6 bearings 61 pass, this bearing hole 24 can adopt upper overturning; Further play resistance effect through upper overturning; The last convex tendon 22 in annular groove 23 outsides extends upward outer annular edge 13 inboards to the scale pan 1 bottom, and the last convex tendon 22 of loam cake 2 is interlocked and formation Mi Gong sealing with the outer annular edge 13 of the scale pan 1 bottom, and the water that can block big portion gets into loam cake 2; Ring limit 12 in the scale pan 1 bottom also has; And interior ring limit 12 is positioned at the inboard of convex tendon 22, goes back the flow velocity that reduces water through retaining in this, and water can flow in the annular groove 23 of bottom; The aperture 25 of annular groove 23 bottoms communicates with drainageway 41 on the base 4, and the most of water that get in the loam cake 2 are directly discharged through the drainageway 41 through base 4 through annular groove 23.

See shown in Fig. 2～5; The following convex tendon 21 of the utility model loam cake 2 extends in the rhone 62 of bracket 6; Make also to be crisscross arranged between loam cake 2 and the bracket 6 and to form Mi Gong sealing, can further prevent in the sealing entering base 4, have more than two osculum 42 on the base 4 with exterior; Can through rhone 62 with the water that flows into after rhone 62 is collected, discharge or discharge through the osculum on the base 4 42 through second osculum and the osculum on the battery cover 7 71 of base 4.

See shown in Fig. 2～5 that the osculum 42 on the utility model base 4 is arranged on scale pin mounting hole 45 places of base 4, visible shown in Figure 4; Osculum 42 is arranged on four scale pin mounting hole 45 places, and osculum 42 is symmetricly set on the inside and outside both sides of scale pin mounting hole 45, because base 4 has the inclined-plane; Therefore through osculum 42 water is flow to base 4 outsides; Can both discharge the scale external through the drainageway on the base, osculum to guarantee all water, because scale pin 3 is mounted in base 4 reverse side, just in time cover osculum 42 simultaneously; Can prevent that like this sealing advances electronic scales from the orifice flow of base 4, can not destroy the attractive in appearance of electronic scales again.

Claims

1. the discharge structure of an electronic scales; Comprise base (4), the loam cake (2) that is connected with base (4) and be installed in the scale pan (1) on the bracket (6); It is characterized in that: the ring seat (11) of the scale pan (1) bottom is installed on the bearing (61) of bracket (6); The arranged outside that bracket (6) is positioned at ring seat (11) has annular rhone (62), and the apopore and the base (4) of rhone (62) bottom are relative; Said loam cake (2) end face has annular groove (23) and is used for the bearing hole (24) that bracket (6) bearing (61) passes; The last convex tendon (22) in annular groove (23) outside extends upward outer annular edge (13) inboard to the scale pan (1) bottom; The aperture (25) of annular groove (23) bottom communicates with the drainageway (41) on the base (4); The following convex tendon (21) of loam cake (2) extends in the rhone (62) of bracket (6), has more than two the osculum (42) with exterior on the base (4).

2. the discharge structure of electronic scales according to claim 1, it is characterized in that: the osculum (42) on the said base (4) is arranged on the scale pin mounting hole (45) of base (4) and locates, and osculum (42) is symmetricly set on the inside and outside both sides of scale pin mounting hole (45).

3. the discharge structure of electronic scales according to claim 1; It is characterized in that: rhone (62) the apopore bottom of said bracket (6) and the drip tray (43) of base (4) are relative; Drip tray (43) is provided with water delivering orifice (44); Base (4) bottom has second osculum, and second osculum communicates with osculum (71) on the battery cover (7) that is installed in base (4) bottom.

4. the discharge structure of electronic scales according to claim 1 is characterized in that: encircle limit (12) in the said scale pan (1) bottom also has, and interior ring limit (12) is positioned at the inboard of convex tendon (22).

5. the discharge structure of electronic scales according to claim 1 is characterized in that: have upper overturning on the bearing hole (24) of said loam cake (2).