CN203572568U

CN203572568U - Waterproof electronic scale

Info

Publication number: CN203572568U
Application number: CN201320525099.8U
Authority: CN
Inventors: 丘守庆; 许申生; 赵克芝
Original assignee: SHENZHEN CHK ELECTRONICS CO Ltd
Current assignee: Xin Huike limited company of Shenzhen
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2014-04-30
Anticipated expiration: 2023-08-27

Abstract

The utility model provides a waterproof electronic scale, and the electronic scale comprises a bottom case, a plurality of measurement parts, and a covering plate. Four corners of the bottom case are respectively provided with a supporting platform which is equipped with one measurement part. The bottom case is provided with a flange which is provided with a glue-dispersing groove. The covering plate is bonded with the bottom case through the glue in the glue-dispersing groove. Each measurement part sequentially comprises a sensor support, a sensor, a fixed support, and an elastic seal ring. The upper surface of the sensor support abuts against the lower surface of the covering plate. The cross section of the elastic seal ring is wavy. The elastic seal ring is disposed between the fixed support and a supporting platform in an elastic deformation manner. A pressure-bearing leg at the center of the elastic seal ring is exposed from a through hole of the supporting platform. The electronic scale provided by the utility model is good in airtightness, can prevent water, dust and the like from entering the interior of the electronic scale, can enable the environment of a circuit board, the sensor and the like in the electronic scale to remain good, can prevent the damage from water and dust, guarantees the accuracy of weighing, and prolongs the service life.

Description

A kind of waterproof electronic scale

Technical field

The utility model belongs to gauging instrument field, specifically a kind of waterproof electronic scale.

Background technology

In the use procedure of electronic scales, the material such as water, dust is easy to enter the inside of electronic scales, and the wiring board in electronic scales, sensor are damaged, and affects the accuracy of its weighing, damage when serious and cause even the malfunctioning of electronic scales, lose and weigh function.

Conditional electronic scale adopts the mode of capping plate and drain pan sealing more, reduce water, the impact of dust on electronic scales, but the pressure-bearing pin of accepting electronic scale sensor and ground etc. adopts mode bonding or screw thread to install, pressure-bearing pin need to protrude from the outside surface of drain pan, when pressure-bearing was worn drain pan, in order not affect the precision of weighing, certain gap need to be set between pressure-bearing pin and drain pan conventionally.While using under rugged environment comparatively, water, dust etc. is easy to enter in electronic scales by this gap, and electronic scales is damaged.

Summary of the invention

In view of the problem that existing electronic scales exists, the utility model provides a kind of waterproof electronic scale, by the design of hermetically-sealed construction, reaches the effect of the infringement electronic scales inside such as anti-sealing, dust.To achieve these goals, the utility model by the following technical solutions.

A kind of waterproof electronic scale, comprising: drain pan, multiple measurement section and capping plate; Four jiaos of described drain pans are respectively established a brace table, on each brace table, be equipped with one described in measurement section; Described drain pan flange also arranges and beats glue groove on this flange, and described capping plate is by described viscose and the described drain pan gluing of beating in glue groove; Described measurement section comprises the sensor stand, sensor, fixed support and the elastic seal ring that set gradually, the upper surface of described sensor stand is butted on the lower surface of described capping plate, the cross section of described elastic seal ring is wavy, be loaded on to described elastic seal ring elastic deformation between described fixed support and described brace table, the pressure-bearing pin of described elastic seal ring center exposes from the through hole of described brace table.

Further, described fixed support is installed in described drain pan by engage thread or ultrasonic soldering mode.

Further, the outward flange of described O-ring seal arranges sealing ring, and described fixed support lid presses described sealing ring in the capillary groove in described brace table outside.

Further, described fixed support and described sealing ring contact position arrange annular projection.

Further, described measurement section also comprises a backing plate, and described backing plate is arranged between described sensor stand and described capping plate, corresponding with the position of described sensor.

Further, in described pressure-bearing pin, place sheet metal, the contact of described sheet metal upper surface and described sensor.

Further, be also provided with waterproof rib on described fixed support, the part of the nearly described sealing ring of described elastic seal ring is stuck in inside described waterproof rib and described capillary groove between cell wall.

Further, the described outside cell wall of beating glue groove is stepped, and the outer part of described outside cell wall is higher than the described inner side cell wall of beating glue groove.

Further, described capping plate is glass plate.

Further, described elastic seal ring is silica gel sealing ring.

Further, also comprise the charging induction part being placed in described drain pan, described charging induction part comprises interior magnetic tank, the interior loop that is placed in described interior magnetic tank and ferromagnetic bar.

Further, described drain pan outside arranges an accommodating cavity with described charging induction part corresponding part, in described accommodating cavity, place a charging head, described charging head comprises the housing of fastening, be placed in the wiring board in described housing, the outer magnetic tank corresponding with described charging induction part, the exterior loop that is placed in described outer magnetic tank and external magnet, and charging inlet.

A kind of waterproof electronic scale good airproof performance of the utility model, there are anti-sealing, dust etc. and enter electronic scales inside, can be good at keeping the environment of electronic scales interior circuit board, sensor, avoid the infringement of water, dust, the weighing accuracy that ensures electronic scales, extends its serviceable life.

Accompanying drawing explanation

Fig. 1 is the stereographic map of the utility model electronic waterproof scale embodiment 1;

Fig. 2 is that the master of Fig. 1 looks partial sectional view;

Fig. 3 is the enlarged drawing that in Fig. 2, A circle shows part;

Fig. 4 is that partial sectional view is looked on a left side of Fig. 1;

Fig. 5 is the enlarged drawing that in Fig. 4, B circle shows part.

Embodiment

Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.Should be appreciated that embodiment described herein is only in order to explain this utility model, and be not used in restriction the utility model.

Below in conjunction with specific embodiment, the utility model is described in detail.

With reference to Fig. 1-5, be depicted as the structural representation of the utility model waterproof electronic scale embodiment 1, this waterproof electronic scale comprises capping plate 1, drain pan 2, measurement section 3, charging induction part 4 and charging head 5, capping plate 1 forms a space with drain pan 2, measurement section 3 and charging induction part 4 are positioned at this space, and charging head 5 is installed on the outside of drain pan 2.

Wherein, capping plate 1 is rectangular-shaped, and for bearing pressure, in order to see the demonstration of electronic scales clearly under encapsulation situations, capping plate 1 adopts glass material to make, and also can select the transparent resin material preparation that can bear enough pressure.

The edge flange of drain pan 2 arranges and beats glue groove 21 on flange, and the outside cell wall of this dozen of glue grooves 21 is stepped, and in order to avoid viscose excessive beating while playing glue on glue groove 21, the outer part of outside cell wall is higher than the inner side cell wall of beating glue groove 21.Adding man-hour, in order to reduce difficulty of processing, the cascaded surface of outside cell wall is identical with on the cell wall height of inner side.Capping plate 1, by viscose and drain pan gluing in this dozen of glue grooves 21, is realized the sealing between capping plate 1 and drain pan 2.

Respectively establish a brace table 22 for four jiaos of drain pan 2, this brace table 22 is round pie, and heart place arranges a through hole therein, and in order to obtain good sealing after installation, brace table 22 arranges some annular concave-convex structures.At arranged outside one capillary groove 23 of brace table 22, for holding ring.

Measurement section 3 has four, is arranged on respectively on the brace table 22 of drain pan 2, and each measurement section 3 from top to bottom sets gradually backing plate 31, sensor stand 32, sensor 33, fixed support 34 and elastic seal ring 35.Backing plate 31 is arranged between sensor stand 32 and capping plate 1, corresponding with the position of sensor 33, can play counterpressure and make pressure accurately be delivered to the effect of sensor 33.

32 times placement sensors 33 of sensor stand, this sensor 33 is LOAD CELLS, and the pressure on sensor stand 32 is delivered to after sensor 33, and this sensor 33 can be known this pressure, and output signal.

Fixed support 34 is fixedly installed in drain pan 2, when selecting mounting means, preferentially adopts thread connecting mode and ultrasonic soldering mode.In order to guarantee better sealing effectiveness, on fixed support 34, be also provided with waterproof rib 341.

The cross section of elastic seal ring 35 is wavy, is installed between fixed support 34 and brace table 22.The outward flange of this elastic seal ring 35 and center arrange respectively sealing ring 351 and pressure-bearing pin 352, and after fixed support 34 and drain pan 2 are fixedly mounted with, elastic seal ring 35, in elastic deformation state, seals the gap between fixed support 34 and drain pan 2; Fixed support 34 covers junk ring 352 in capillary groove 23, and the part of elastic seal ring 35 nearly sealing rings 352 is stuck between waterproof rib 341 and capillary groove 23 inner side cell walls, and the through hole of pressure-bearing pin 352 from brace table 22 exposes.In order to keep lid to press and sealing effectiveness, in fixed support 34 and sealing ring 352 contact positions, annular projection is set; In pressure-bearing pin, place a sheet metal 353, the contact of the upper surface of this sheet metal 353 and sensor 33, can better be supported and then accurate senses change in pressure.Elastic seal ring 35 can be selected elastomeric material or silica gel preparation, also can have flexible material by other and make.

Charging induction part 4 is positioned at drain pan 2, this charging induction part 4 comprises interior magnetic tank 41, interior loop 42 and ferromagnetic bar 43, interior magnetic tank 41 is fixed on drain pan 2 by the mode such as gluing, interior loop 42 is positioned at magnetic tank 41, ferromagnetic bar 43 is placed in the groove of interior magnetic tank 41 sidewalls, and this ferromagnetic bar 43 can be magnet strip or iron block etc.

Charging head 5 is arranged on the outside of drain pan 2, on drain pan 2, with charging induction part 4 corresponding parts, one accommodating cavity (not marking in figure) is set, charging head 5 is inserted in this accommodating cavity, and charging head 5 comprises the wiring board 52 in housing 51 and housing 51, outer magnetic tank 53, exterior loop 54, external magnet 55 and charging inlet 56.Exterior loop 54 is positioned at outer magnetic tank 53, and external magnet 55 is placed in the groove of outer magnetic tank 53 sidewalls, and outer magnetic tank 53, external magnet 55 align with interior magnetic tank 41, ferromagnetic bar 43 respectively.Wiring board 52 produces induction charging function together with the device on it, and external magnet 55 produces magnetic location with ferromagnetic bar 43.Charging inlet 56 can be selected USB interface or circular interface etc., at charging inlet 56, connects after power supply, utilizes magnetoelectricity transfer principle, and magnetic field is converted to electric energy, and electronic scales is charged.

In waterproof electronic scale, circuit board, demonstration etc. all adopt existing technical scheme, and therefore not to repeat here.

In other embodiments, in waterproof electronic scale, can adopt battery, the capacitor that dry cell that reserve of electricity is larger or other can induction chargings that electric energy is provided.

By specific embodiment, the utility model has been done to detailed explanation above, these concrete descriptions can not think that the utility model only only limits to the content of these embodiment.Those skilled in the art according to the utility model design, these descriptions any improvement of making in conjunction with general knowledge known in this field, be equal to replacement scheme, all should be included in the protection domain of the utility model claim.

Claims

1. a waterproof electronic scale, is characterized in that, comprising: drain pan, multiple measurement section and capping plate; Four jiaos of described drain pans are respectively established a brace table, on each brace table, be equipped with one described in measurement section; Described drain pan flange also arranges and beats glue groove on this flange, and described capping plate is by described viscose and the described drain pan gluing of beating in glue groove; Described measurement section comprises the sensor stand, sensor, fixed support and the elastic seal ring that set gradually, the upper surface of described sensor stand is butted on the lower surface of described capping plate, the cross section of described elastic seal ring is wavy, be loaded on to described elastic seal ring elastic deformation between described fixed support and described brace table, the pressure-bearing pin of described elastic seal ring center exposes from the through hole of described brace table.

2. waterproof electronic scale according to claim 1, is characterized in that, described fixed support is installed in described drain pan by engage thread or ultrasonic soldering mode.

3. waterproof electronic scale according to claim 1 and 2, is characterized in that, the outward flange of described O-ring seal arranges sealing ring, and described fixed support lid presses described sealing ring in the capillary groove in described brace table outside.

4. waterproof electronic scale according to claim 3, is characterized in that, described fixed support and described sealing ring contact position arrange annular projection.

5. waterproof electronic scale according to claim 3, is characterized in that, is also provided with waterproof rib on described fixed support, and the part of the nearly described sealing ring of described elastic seal ring is stuck in inside described waterproof rib and described capillary groove between cell wall.

6. waterproof electronic scale according to claim 1, is characterized in that, described measurement section also comprises a backing plate, and described backing plate is arranged between described sensor stand and described capping plate, corresponding with the position of described sensor.

7. waterproof electronic scale according to claim 1, is characterized in that, places sheet metal, the contact of described sheet metal upper surface and described sensor in described pressure-bearing pin.

8. waterproof electronic scale according to claim 1, is characterized in that, the described outside cell wall of beating glue groove is stepped, and the outer part of described outside cell wall is higher than the described inner side cell wall of beating glue groove.

9. waterproof electronic scale according to claim 1, is characterized in that, also comprises the charging induction part being placed in described drain pan, and described charging induction part comprises interior magnetic tank, the interior loop that is placed in described interior magnetic tank and ferromagnetic bar.

10. waterproof electronic scale according to claim 9, it is characterized in that, described drain pan outside arranges an accommodating cavity with described charging induction part corresponding part, in described accommodating cavity, place a charging head, described charging head comprises the housing of fastening, be placed in the wiring board in described housing, the outer magnetic tank corresponding with described charging induction part, the exterior loop that is placed in described outer magnetic tank and external magnet, and charging inlet.