CN2748882Y - Electronic scale - Google Patents
Electronic scale Download PDFInfo
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- CN2748882Y CN2748882Y CN 200420071686 CN200420071686U CN2748882Y CN 2748882 Y CN2748882 Y CN 2748882Y CN 200420071686 CN200420071686 CN 200420071686 CN 200420071686 U CN200420071686 U CN 200420071686U CN 2748882 Y CN2748882 Y CN 2748882Y
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- pedestal
- lever
- lever bracket
- fulcrum
- stressed
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Abstract
The utility model relates to an electronic scale. The upper cover (5) of the utility model is fixedly connected with a base (1). The four first stressed fulcrums (73) of a lever bracket (7) in the base (1) are respectively limited to the four corners of the base (1). Four scale feet (2) are flexibly and actively connected with the bottom of the base (1) along the vertical direction. The top knifepoint (21) of the scale feet collides to the second stressed fulcrum (74) of the bottom of the lever bracket (7). The weight sensor (3) collides to the weight outlet fulcrum (75) of the lever bracket (7) downwards. The weight of a weighted object is assigned to the four scale feet (2) by the base (1) and the lever bracket (7). The acting force which is that every scale foot (2) and a vertical mural pore (1) act to the first stressed fulcrums (73) and the second stressed fulcrum (74) of the lever bracket (7) is transmitted to the weight sensor (3) by a fixed reduction ratio. After the acting force is transmitted and processed by a metering circuit (4), the value of the object weight is exhibited on a display screen (6). The electronic scale of the utility model can omit the iron upper cover and can reduce the cost effectively.
Description
Technical field
The utility model relates to a kind of electronic scales, relates in particular to a kind of electronic scales that adopts the lever bracket power transmission, is suitable for the weight of weighing persons.
Background technology
A kind of common type of Electronic Scales for Human Beings is a single-sensor digital display weighing scale at present, as depicted in figs. 1 and 2, its basic structure comprises: four of usefulness are the scale body that supporting of scale pin 2 fixedly, all parts of scale body all are contained on the pedestal 1 that an iron and steel makes, be covered with the iron loam cake 9 that a load-bearing is used above the pedestal 1, be covered with a main upper plastic cover 5 that plays decoration function above again, four man-like shelf levers 7 that are called as the length arm are housed on the pedestal 1, article four, first of the lever end stressed fulcrum 73 lays respectively at four bights of pedestal 1, people's weight is pressed in the second stressed fulcrum, 74 places at man-like shelf lever 7 tops on the upper plastic cover 5 by iron loam cake 9 and four points of a knife 91 being distributed in four jiaos at its back side, this second stressed fulcrum 74 is very near with above-mentioned first stressed fulcrum 73 distances, the power that man-like shelf lever 7 first and second stressed fulcrums 73 and 74 places are subjected to is delivered to by a fixing scale down on the weight sensor 3 of man-like shelf lever 7 weight output fulcrum 75 belows, and weight sensor 3 output signals are measured and after circuit 4 is handled human weight numerical value are presented on the display screen 6.Adopt the electronic scales of said structure, its pedestal 1 and iron loam cake 9 are main load parts of scale, wherein the bottom of iron loam cake 9 only depends on four blade point 91 supports suffered load on it, usually adopt thicker iron plate to make, the cost ratio that takies is higher, thereby adopt the Electronic Scales for Human Beings of said structure to be difficult to reduce cost, be unfavorable in intense market competition, winning victory.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of iron loam cake, lower-cost electronic scales of need not.
The technical scheme in the invention for solving the above technical problem is, manufacture and design a kind of electronic scales, comprise: pedestal, loam cake, the scale pin that is distributed in four angles of pedestal, weight sensor, the pedestal stressing conditions is passed to the lever bracket of weight sensor and metering circuit that is connected with weight sensor and display screen; Wherein:
Described loam cake is fixedlyed connected with pedestal, and four first stressed fulcrums of lever bracket are limited at respectively in four perpendicular cinclides of described pedestal;
Described four scale pin pass freely through the through hole of four jiaos of pedestal bottom plates respectively and are connected with described base plate is vertically soft, assurance scale pin can be located in the surface level direction, and certain free scope of activities is arranged in vertical direction, vertically upward a point of a knife is fixed at each scale pin top, and the downward second stressed fulcrum of this point of a knife and described lever bracket is inconsistent;
Described weight sensor is inconsistent with the weight output fulcrum of described lever bracket down;
Weighed object places on the loam cake, its weight is assigned on four scale pin by described pedestal and lever bracket, the point of a knife of each scale pin produces the acting force that makes progress that size equates with this scale pin heavy burden to the second downward stressed fulcrum of the lever bracket on it, the downward acting force that this acting force acts on the lever bracket first stressed fulcrum with the perpendicular cinclides of pedestal produces one and upwards acts on the power of lever bracket weight output fulcrum with fixing scale down, and this power passes to metering circuit by weight sensor and handles the back demonstrates object on display screen weight numerical value.Electronic scales behind the employing said structure, its load-supporting part is a pedestal, just can save the iron loam cake thus.
The described loam cake back side directly is pressed on pedestal upper surface but does not contact with described lever bracket, and the load that acts on loam cake can directly be passed to pedestal.
Described loam cake adopts the low plastic material of cost, in order to strengthen its intensity, is provided with reinforcement at its back side, directly is pressed in the upper surface of pedestal at the bottom of the muscle of described reinforcement.
Described perpendicular cinclides is opened on four angles of pedestal lateral wall, the described lateral wall end face formation horizontal edge that turns up, and this horizontal edge is concordant with the upper surface at pedestal middle part, and the described loam cake back side is pressed on this horizontal edge.
Described lever bracket is symmetrical two man-like shelf levers, everyone cabinet frame lever comprises a long-armed lever and a short arm lever, long-armed lever one end of long-armed lever one end and opposite side crosses and forms described weight output fulcrum and upwards offset with weight sensor, the perpendicular cinclides place that the long-armed lever other end is connected in one jiao of pedestal forms its first stressed fulcrum, described short arm lever one end is connected in the middle part of long-armed lever, and the perpendicular cinclides place that the other end is connected in another angle of pedestal homonymy forms its first stressed fulcrum.
Described scale pin is connected in base bottom by plastic parts, and this plastic parts is ringwise around the scale pin, and its cross section is the corrugated of level trend, and this structure can guarantee that the scale pin can locate in the surface level direction, and in vertical direction certain free scope of activities is arranged.
Between described lever bracket and the pedestal bottom plate compression spring is installed, lever bracket also upwards is pressed on sensor, for scale is provided with zero point when scale is unloaded.
Compare with prior art, electronic scales of the present utility model is because its not load-bearing of loam cake, thereby can save the iron loam cake, and its material cost has descended about 15% with respect to Electronic Scales for Human Beings commonly used at present.
Description of drawings
Fig. 1 is the schematic diagram of existing electronic scales;
The structural representation of the existing electronic scales of Fig. 2;
Fig. 3 is the schematic diagram of the utility model electronic scales;
Fig. 4 is the structural representation of the utility model electronic scales.
Fig. 5 is the sectional view of the utility model electronic scales;
Fig. 6 is the structural representation at described loam cake 5 back sides;
Fig. 7 is the first stressed fulcrum 73 of lever bracket 7 and the enlarged drawing at the second stressed fulcrum, 74 places;
Fig. 8 is the enlarged drawing of described long-armed lever 71 intersections;
Fig. 9 is the enlarged drawing of described compression spring 10 and lever bracket 7 junctions.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
As shown in Figure 4, the utility model electronic scales comprises: pedestal 1, loam cake 5, the scale pin 2 that is distributed in 1 four angles of pedestal, weight sensor 3, pedestal 1 stressing conditions passed to the lever bracket 7 of weight sensor 3, and the metering circuit 4 that connects with weight sensor 3 and with the corresponding display screen 6 of loam cake 5 surperficial perforates, wherein:
Described lever bracket 7 is symmetrical two man-like shelf levers, everyone cabinet frame lever comprises a long-armed lever 71 and a short arm lever 72 that is lath-shaped, the whole height of every lever is more much bigger than its width, this helps strengthening its bending strength, long-armed lever one end of long-armed lever 71 1 ends and opposite side cross form described weight output fulcrum 75 upwards with weight sensor 3 offset (Fig. 3), perpendicular cinclides 11 places that long-armed lever 71 other ends are connected in 1 one jiaos of pedestals form its first stressed fulcrum 73, described short arm lever 72 1 ends are connected in the middle part of long-armed lever 71, and perpendicular cinclides 11 places that the other end is connected in pedestal 1 another angle of homonymy form its first stressed fulcrum 73 (Fig. 7).
As shown in Figure 4, described pedestal 1 adopts iron and steel to make, which is provided with symmetrical two " people " font recess 13, pedestal 1 periphery also is provided with a circle groove 15, described perpendicular cinclides 11 is opened on four angles of these groove 15 lateral walls, described lateral wall end face turns up and forms horizontal edge 14, and this horizontal edge 14 is concordant with the upper surface at pedestal 1 middle part.Described two man-like shelf levers are positioned at above-mentioned two " people " font recess 13 of pedestal 1, thereby described loam cake 5 back sides directly are pressed on the horizontal edge 14 of pedestal 1 and the upper surface at middle part is passed to weight on the substrate 1 equably, but do not contact and reserve certain space for lever bracket 7 activities with described lever bracket 7.
Described loam cake 5 adopts plastic material, be subjected to force intensity in order to strengthen it, as shown in Figure 6, its back side is provided with groined type reinforcement 51, back side periphery is provided with convex edge 52, directly be pressed at the bottom of the muscle of described reinforcement 51 on the upper surface and horizontal edge 14 of pedestal 1, its peripheral convex edge 52 just in time is fastened on outside this horizontal edge 14.
As shown in Figure 7, described four scale pin 2 are connected on four jiaos of through holes of offering 12 of pedestal 1 base plate by the corrugated tube shape plastic parts 8 of softness, this plastic parts 8 is ringwise around scale pin 2, its cross section is the corrugated of level trend, this structure can guarantee that scale pin 2 can locate in the surface level direction, and certain free scope of activities is arranged in vertical direction, and during fabrication, can be with this plastic parts 8 and scale pin 2 integrated injection moldings.Each scale pin 2 center of top is fixed vertically upward a point of a knife 21, and the bottom through-hole 12 that scale pin 2 can vertically pass freely through pedestal 1 is inconsistent until the second stressed fulcrum 74 of its top point of a knife 21 and lever bracket 7 bottoms.
Owing to adopted above structure, described weight sensor 3 is just in time opposite with existing electronic scales, it is the top that is fixed on the weight output fulcrum 75 of described lever bracket 7, as shown in Figure 8, in order the power of two long-armed levers 71 to be reached the contact 31 of weight sensor 3, fix a web joint 76 in the intersection of two long-armed levers 71, by this web joint 76 with two long-armed levers 71 make a concerted effort reach on the contact 31 of weight sensor 3.
As Fig. 3 and shown in Figure 5, in the time of on weighed object places loam cake 5, its weight directly is passed to the upper surface of pedestal 1 by loam cake 5, the perpendicular cinclides 11 of pedestal 1 is to the first stressed fulcrum 73 that presses down long-armed lever 71 and short arm lever 72, long-armed lever 71 and short arm lever 72 are evenly distributed on four scale pin 2 stressed by the second stressed fulcrum 74, the point of a knife 21 of each scale pin 2 produces the acting force that makes progress that size equates with these scale pin 2 heavy burdens to the second stressed fulcrum 74 of long-armed lever 71 on it or short arm lever 72 bottoms, the downward acting force that this acting force acts on long-armed lever 71 or short arm lever 72 first stressed fulcrums 73 with the perpendicular cinclides 11 of pedestal 1 produces one and upwards acts on the power of lever bracket 7 weight output fulcrum 75 with fixing scale down, and this power passes to metering circuit 4 by weight sensor 3 and handles the back demonstrates object on display screen 6 weight numerical value.Above-mentioned scale down can calculate according to principle of moment balance, stressed fulcrum 73 of first, second of its numerical value and long- armed lever bracket 71 and 74 distances apart from weight output fulcrum 75, short arm lever 72 first, second stressed fulcrums are apart from the distance dependent of itself and long-armed lever 71 links, its concrete computing method are prior art, no longer describe in detail herein.
As shown in Figure 7, described long-armed lever 71 and short arm lever 72 bottoms and scale pin 2 corresponding positions are provided with one and fall " V " font breach, this breach is the second stressed fulcrum 74 of described lever bracket 7, the top point of a knife 21 of scale pin 2 just in time withstands on this indentation, there, and this structure helps to improve the precision that electronic scales is measured.
Described lever bracket 7 can slightly up be lifted towards weight output fulcrum 75 directions when cause was weighed, as shown in Figure 4, the depth of section of described short arm lever 72 is extremely gradually little with the link of long-armed lever 71 from the link of pedestal 1, and its thinner end passes the opening on the long-armed lever 71 middle part vertical side walls; The depth of section of described long-armed lever 71 is by gradually little to its weight output fulcrum 75 with short arm lever 72 tie points.Thereby the back side that can prevent the lever bracket 7 conflict loam cakes 5 lifted like this influences the precision of weighing.
Equally, as shown in Figure 7, top in described long-armed lever 71 and short arm lever 72 and 1 four jiaos of junctions of pedestal has " V " font breach, this " V " font breach is the first stressed fulcrum 73 of described lever bracket 7, this breach is stuck in corresponding perpendicular cinclides 11 places, when loam cake 5 was stressed, perpendicular cinclides 11 was pressed on this " V " font breach and by this lever power is reached scale pin 2.But perpendicular cinclides 11 should also have certain loosening space, and making long-armed lever 71 or short arm lever 72 can be that fulcrum produces small rotation with perpendicular cinclides 11.
As shown in Figure 9, between two short arm levers 72 or short arm lever 72 and long-armed lever 71 intersections and pedestal 1 base plate, compression spring 10 is installed, whole lever bracket 7 also upwards is pressed on the sensor 3, for scale is provided with zero point when scale is unloaded.
Electronic scales of the present utility model is 150Kg at range, and after 20000 fatigue and cyclic of half range load, precision still can reach ± 300g, has satisfied the requirement to the quality and the degree of accuracy of electronic scales.
Claims (9)
1, a kind of electronic scales, comprise: pedestal (1), loam cake (5), the scale pin (2) that is distributed in (1) four angle of pedestal, weight sensor (3), pedestal (1) stressing conditions passed to the lever bracket (7) of weight sensor (3), and metering circuit (4) that is connected with weight sensor (3) and display screen (6), it is characterized in that:
Described loam cake (5) is fixedlyed connected with pedestal (1), and four the first stressed fulcrums (73) of lever bracket (7) are limited at respectively in four perpendicular cinclides (11) of described pedestal (1);
Described four scale pin (2) pass freely through the through hole (12) of four jiaos of pedestal (1) base plates respectively and are connected with described base plate is vertically soft, vertically upward a point of a knife (21) is fixed at each scale pin (2) top, and the downward second stressed fulcrum (74) of this point of a knife (21) and described lever bracket (7) is inconsistent;
Described weight sensor (3) is inconsistent with the weight output fulcrum (75) of described lever bracket (7) down;
Weighed object places on the loam cake (5), its weight is assigned on four scale pin (2) by described pedestal (1) and lever bracket (7), the point of a knife (21) of each scale pin (2) produces the acting force that makes progress that size equates with this scale pin (2) heavy burden to the second downward stressed fulcrum (74) of the lever bracket on it (7), the downward acting force that this acting force acts on lever bracket (7) first stressed fulcrums (73) with the perpendicular cinclides (11) of pedestal (1) produces one and upwards acts on the power of lever bracket (7) weight output fulcrum (75) with fixing scale down, and this power passes to metering circuit (4) by weight sensor (3) and handles the back demonstrates object on display screen (6) weight numerical value.
2, electronic scales according to claim 1 is characterized in that: described loam cake (5) back side directly is pressed on pedestal (1) upper surface but does not contact with described lever bracket (7).
3, electronic scales according to claim 2 is characterized in that: described loam cake (5) back side is provided with reinforcement (51), directly is pressed in the upper surface of pedestal (1) at the bottom of the muscle of described reinforcement (51).
4, electronic scales according to claim 2, it is characterized in that: described perpendicular cinclides (11) is opened on four angles of pedestal (1) lateral wall, described lateral wall end face turns up and forms horizontal edge (14), this horizontal edge (14) is concordant with the upper surface at pedestal (1) middle part, and described loam cake (5) back side is pressed on this horizontal edge (14).
5, according to the arbitrary described electronic scales of claim 1 to 4, it is characterized in that: described lever bracket (7) is symmetrical two man-like shelf levers, everyone cabinet frame lever comprises a long-armed lever (71) and a short arm lever (72), long-armed lever one end of long-armed lever (71) one ends and opposite side crosses and forms described weight output fulcrum (75) and upwards offset with weight sensor (3), long-armed lever (71) other end is connected in the perpendicular cinclides (11) of (1) one jiao of pedestal and locates to form its first stressed fulcrum (73), described short arm lever (72) one ends are connected in the middle part (77) of long-armed lever (71), and the other end is connected in the perpendicular cinclides (11) at pedestal (1) another angle of homonymy and locates to form its first stressed fulcrum (73).
6, electronic scales according to claim 5, it is characterized in that: described long-armed lever (71) and short arm lever (72) bottom and scale pin (2) corresponding position are provided with one and fall " V " font breach, " V " font breach that should fall is the described second stressed fulcrum (74) of lever bracket (7), and the top point of a knife (21) of scale pin (2) just in time withstands on this indentation, there.
7, electronic scales according to claim 5, it is characterized in that: described long-armed lever (71) and short arm lever (72) have " V " font breach with the top of (1) four jiao of junction of pedestal, the described first stressed fulcrum (73) that should " V " font breach be lever bracket (7), this breach are stuck in corresponding perpendicular cinclides (11) and locate and have certain activity space.
8, according to the arbitrary described electronic scales of claim 1 to 4, it is characterized in that: described scale pin (2) is connected in pedestal (1) bottom by plastic parts (8), and this plastic parts (8) is ringwise around scale pin 2, and its cross section is the corrugated of level trend.
9, according to the arbitrary described electronic scales of claim 1 to 4, it is characterized in that: between described lever bracket (7) and pedestal (1) base plate compression spring (10) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071686 CN2748882Y (en) | 2004-07-16 | 2004-07-16 | Electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071686 CN2748882Y (en) | 2004-07-16 | 2004-07-16 | Electronic scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748882Y true CN2748882Y (en) | 2005-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420071686 Expired - Fee Related CN2748882Y (en) | 2004-07-16 | 2004-07-16 | Electronic scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748882Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017652A (en) * | 2016-01-20 | 2016-10-12 | 申俊 | Dual purpose electronic scale |
| CN108414060A (en) * | 2018-02-12 | 2018-08-17 | 上海寺冈电子有限公司 | Double weighing electronic scale |
| CN113324638A (en) * | 2020-02-28 | 2021-08-31 | 霍尼韦尔国际公司 | Weight measuring device and method of use thereof |
| CN117653075A (en) * | 2024-02-02 | 2024-03-08 | 深圳云麦科技有限公司 | Telescopic folding eight-electrode body fat scale |
| CN117804670A (en) * | 2024-02-28 | 2024-04-02 | 深圳市沃感科技有限公司 | Error correction method and device for plate-type pressure sensor |
-
2004
- 2004-07-16 CN CN 200420071686 patent/CN2748882Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017652A (en) * | 2016-01-20 | 2016-10-12 | 申俊 | Dual purpose electronic scale |
| CN108414060A (en) * | 2018-02-12 | 2018-08-17 | 上海寺冈电子有限公司 | Double weighing electronic scale |
| CN113324638A (en) * | 2020-02-28 | 2021-08-31 | 霍尼韦尔国际公司 | Weight measuring device and method of use thereof |
| US11892340B2 (en) | 2020-02-28 | 2024-02-06 | Honeywell International Inc. | Weight scale with centralized lever supported receiving tray |
| CN117653075A (en) * | 2024-02-02 | 2024-03-08 | 深圳云麦科技有限公司 | Telescopic folding eight-electrode body fat scale |
| CN117653075B (en) * | 2024-02-02 | 2024-04-30 | 深圳云麦科技有限公司 | Telescopic folding eight-electrode body fat scale |
| CN117804670A (en) * | 2024-02-28 | 2024-04-02 | 深圳市沃感科技有限公司 | Error correction method and device for plate-type pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGSHAN JIAWEI ELECTRONICS CO., LTD. Free format text: FORMER OWNER: PENG XIAOYONG Effective date: 20060224 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060224 Address after: 528400, Liu Huanguang, 277 Sun Wen Dong Road, Guangdong, Zhongshan Patentee after: Zhongshan Camry Electronic Co., Ltd. Address before: 518052 Guangdong city of Shenzhen province Nanshan District Xuefu Road Yukang garden building 101 room 20 Patentee before: Peng Xiaoyong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051228 Termination date: 20130716 |