CN207556637U - Weighing and sensing device assembly and the electronic balance for including it - Google Patents
Weighing and sensing device assembly and the electronic balance for including it Download PDFInfo
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- CN207556637U CN207556637U CN201721663674.5U CN201721663674U CN207556637U CN 207556637 U CN207556637 U CN 207556637U CN 201721663674 U CN201721663674 U CN 201721663674U CN 207556637 U CN207556637 U CN 207556637U
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- weighing
- limited block
- lever
- sensing device
- device assembly
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Abstract
The utility model provides a kind of weighing and sensing device assembly and includes its electronic balance, and the weighing and sensing device assembly includes：Weighing unit includes supporting part, fixed part and the parallel guidance set that the supporting part links together with the fixed part；One end of lever is connect with the supporting part, and the lever is between the parallel guidance set and the fixed part；The lower part of optoelectronic position limited block is fixedly connected with the fixed part, the top of the optoelectronic position limited block is provided with a position limiting structure, the tail end of the other end of the lever is threaded through in the position limiting structure, to limit the offset of the tail end of the other end of the lever.The utility model is all disposed within by photoelectrical position sensor and with the stop configurations for preventing lever tail from reflecting larger offset on optoelectronic position limited block, form integral structure, this weighing and sensing device assembly has simple in structure, easy to assembly and cost economic dispatch many advantages.
Description
Technical field
The utility model is related to electronic balance field, more particularly to a kind of weighing and sensing device assembly and include its electronics day
It is flat.
Background technology
In daily life, electronic balance is known as using the balance of electromagnetic force equilibrium weighed object gravity.Its main feature is that claim
Amount accurately and reliably, display it is quick clear, and with automatic checkout system, easy self-checking device and overload protection etc.
Device.
At present, the sensor that is used on electronic balance is largely electromagnetism compensation type sensor, and lever can produce during loading
Raw offset, therefore the backstop knot that all can prevent lever tail from larger offset occurs there are one on electromagnetism compensation type sensor
Structure.The variation of luminous flux can all be detected above the compensation sensor of electromagnet using photoelectrical position sensor simultaneously.Common
Photoelectrical position sensor and the stop configurations parts that be two different for preventing lever tail from larger offset occurs, so
Part on sensor is just more various, and assembling procedure is also more complicated, and cost is also relatively high.
To solve the above-mentioned problems, the utility model provides a kind of photoelectrical position sensor and prevents lever tail
The integrated sensor module of stop configurations of larger offset.
Utility model content
The technical problems to be solved in the utility model be in order to overcome in the prior art weighing sensor component part it is various,
The defects of assembling complexity and higher cost, a kind of weighing and sensing device assembly is provided and includes its electronic balance.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of weighing and sensing device assembly, for electronic balance, feature is, the weighing and sensing device assembly includes：
Weighing unit, the weighing unit include supporting part, fixed part and connect the supporting part and the fixed part
The parallel guidance set being connected together；
Lever, one end of the lever are connect with the supporting part, and the lever be located at the parallel guidance set and
Between the fixed part；
Optoelectronic position limited block, the lower part of the optoelectronic position limited block are fixedly connected with the fixed part, the photoelectricity
The top of position limited block is provided with a position limiting structure, and the tail end of the other end of the lever is threaded through the position limiting structure
It is interior, to limit the offset of the tail end of the other end of the lever.
One embodiment according to the present utility model, the weighing and sensing device assembly further include photoemission receiver board, institute
Photoemission receiver board is stated to be fixed in the outside wall surface of the optoelectronic position limited block.
One embodiment according to the present utility model, one end of the fixed part extend to supporting part and between supporting part
Equipped with gap, the end set of the other end has a mounting portion；
The lower part of the optoelectronic position limited block offers the elliptical aperture of a perforation, and the elliptical aperture is passed through by fixing piece
The optoelectronic position limited block is fixed to the fixed part with the mounting portion.
One embodiment according to the present utility model, it is recessed that the mounting portion of the fixed part is set as an installation to extend internally
Slot, the installation groove are matched with the lower shape of the optoelectronic position limited block, and the lower part of the optoelectronic position limited block is embedding
Enter and be fixedly connected in the installation groove.
One embodiment according to the present utility model is provided with one in the outside wall surface of the lower part of the optoelectronic position limited block
The installation groove extended inwards, the elliptical aperture is located in the installation groove, and the installation groove and the position limiting structure
Positioned at the same outside wall surface of the optoelectronic position limited block；The mounting portion of the fixed part is set as outwardly projecting lug boss,
The lug boss is embedded and is fixedly connected in the installation groove.
One embodiment according to the present utility model, the position limiting structure are a longitudinally through recess, and the recess is set
It puts between the upper surface of the optoelectronic position limited block and corresponding lower face.
One embodiment according to the present utility model, the tail end of the other end of the lever are separated by a stria,
The tail end is at least partially disposed in the position limiting structure, the upper surface of the tail end and the upper table of the position limiting structure
Face coordinates, and the lower face of the tail end and the lower surface of the position limiting structure coordinate.
One embodiment according to the present utility model, when electronic balance is in energization stability, the lever
The upper surface of tail end and the upper surface of the position limiting structure between have gap；The lower face of the tail end of the lever and
There is gap between the lower surface of the position limiting structure.
One embodiment according to the present utility model, the position limiting structure and optoelectronic position limited block are an integral structure.
The utility model additionally provides a kind of electronic balance, and feature is, the electronic balance includes as described above
Weighing and sensing device assembly.
The positive effect of the utility model is：
The utility model weighing and sensing device assembly and including its electronic balance by photoelectrical position sensor and and prevent thick stick
The stop configurations that larger offset is reflected in bar tail portion are all disposed on optoelectronic position limited block, are formed integral structure, can be passed through
It is machining, it can also be then machining again by first die casting.Pass through this structure setting weighing sensor group
Part has simple in structure, easy to assembly and cost economic dispatch many advantages.
Description of the drawings
The above and other feature of the utility model, property and advantage will be by with reference to the accompanying drawings and examples
It describing and becomes apparent, reference numeral identical in the accompanying drawings always shows identical feature, wherein：
Fig. 1 is the stereogram of the utility model weighing and sensing device assembly.
Fig. 2 is the sectional view of the utility model weighing and sensing device assembly.
Fig. 3 is the enlarged drawing of part A in Fig. 2.
Fig. 4 is the stereogram of lever in the utility model weighing and sensing device assembly.
Fig. 5 is the structure diagram of the other end of lever in the utility model weighing and sensing device assembly.
Fig. 6 is the stereogram of an embodiment of weighing unit in the utility model weighing and sensing device assembly.
Fig. 7 is the stereogram of an embodiment of optoelectronic position limited block in the utility model weighing and sensing device assembly.
Fig. 8 is the stereogram of another embodiment of weighing unit in the utility model weighing and sensing device assembly.
Fig. 9 is the stereogram of another embodiment of optoelectronic position limited block in the utility model weighing and sensing device assembly.
Figure 10 is the schematic diagram of the left side of optoelectronic position limited block in the utility model weighing and sensing device assembly.
Figure 11 is the stereogram of photoelectrical position sensor component in the utility model weighing and sensing device assembly.
Specific embodiment
For the above-mentioned purpose of the utility model, feature and advantage can be clearer and more comprehensible, below in conjunction with attached drawing to this practicality
Novel specific embodiment elaborates.
The embodiment of the utility model is described now with detailed reference to attached drawing.Now with detailed reference to the excellent of the utility model
Embodiment is selected, its example is shown in the drawings.In the case of any possible, identical label will be used in all the appended drawings
Represent the same or similar part.
In addition, although the term used in the utility model is selected from public term, this reality
May be that applicant is judged come selection that detailed meanings exist as his or her with some terms mentioned in novel specification
Illustrate in the relevant portion of description herein.
In addition, it is desirable that not only by used actual terms, and be also to the meaning contained by each term
To understand the utility model.
Fig. 1 is the stereogram of the utility model weighing and sensing device assembly.Fig. 2 is the utility model weighing and sensing device assembly
Sectional view.Fig. 3 is the enlarged drawing of part A in Fig. 2.
As shown in Figure 1 to Figure 3, the utility model discloses a kind of electronic balance, including a kind of weighing and sensing device assembly
10.Weighing and sensing device assembly 10 includes weighing unit 11, lever 12 and photoelectrical position sensor component.Wherein, weighing unit 11
Including supporting part 111, fixed part 112 and the parallel guidance set 113 that supporting part 111 links together with fixed part 112.
One end of lever 12 is connect with supporting part 111, and lever 12 is between parallel guidance set 113 and fixed part 112.The light
Electric position sensor component is mounted on the other end of lever 12.
Fig. 4 is the stereogram of lever in the utility model weighing and sensing device assembly.Fig. 5 is the utility model weighing sensor
The structure diagram of the other end of lever in component.Fig. 6 is a reality of weighing unit in the utility model weighing and sensing device assembly
Apply the stereogram of example.Fig. 7 is the stereogram of an embodiment of optoelectronic position limited block in the utility model weighing and sensing device assembly.
As shown in Figures 4 to 7, photoelectrical position sensor component described in the present embodiment weighing and sensing device assembly includes photoelectricity
Transmitting receiver board 13 and optoelectronic position limited block 14, the lower part of optoelectronic position limited block 14 are fixedly connected with fixed part 112, photoelectricity
The top of position limited block 14 is provided with a position limiting structure 141.The tail end of the other end of lever 12 is threaded through position limiting structure 141
It is interior, to limit the offset of the tail end of the other end of lever 12.Photoemission receiver board 13 is fixed on optoelectronic position limited block 14
In outside wall surface.
One end of fixed part 112 extends to supporting part 111 and gap, the end of the other end is equipped between supporting part 111
A mounting portion 1121 is provided with, for installing optoelectronic position limited block 14.Specifically, in the lower part of optoelectronic position limited block 14
(left side 149 as shown in Figure 7) offers the elliptical aperture b of a perforation, and elliptical aperture b and mounting portion are passed through by fixing piece
Optoelectronic position limited block 14 is fixed to fixed part 112 by 1121.
As shown in Figure 6 and Figure 7, in one embodiment, the mounting portion 1121 of fixed part 112 is set as one to extend internally
Installation groove, the installation groove matches with the lower shape of optoelectronic position limited block 14, passes through optoelectronic position limited block 14
Lower part it is embedded and be fixedly connected in the installation groove so that formed between optoelectronic position limited block 14 and fixed part 112
It is fixedly connected, can effectively act as preventing limited block in the weighing sensor assembling process from tilting.
Fig. 8 is the stereogram of another embodiment of weighing unit in the utility model weighing and sensing device assembly.Fig. 9 is this reality
With the stereogram of another embodiment of optoelectronic position limited block in novel weighing sensor component.
As shown in Figure 8 and Figure 9, in another embodiment, the connection structure of fixed part 112 and optoelectronic position limited block 14
It can also use another way, such as be provided in the outside wall surface of the lower part of optoelectronic position limited block 14 one and extend inwards
Installation groove a, elliptical aperture b are located in installation groove a.Installation groove a and position limiting structure 141 herein is located at optoelectronic position limiting
The same outside wall surface of block 14.The mounting portion 1121 of fixed part 112 is set as outwardly projecting lug boss, and the lug boss is embedded in
And it is fixedly connected in installation groove a.It can thus to be formed between optoelectronic position limited block 14 and fixed part 112 and fix
Connection can effectively act as preventing limited block in the weighing sensor assembling process from tilting.
Figure 10 is the schematic diagram of the left side of optoelectronic position limited block in the utility model weighing and sensing device assembly.Figure 11 is
The stereogram of photoelectrical position sensor component in the utility model weighing and sensing device assembly.
As shown in Figure 10 and Figure 11, further, in the outside wall surface of the lower part of optoelectronic position limited block 14 (institute in such as Fig. 7
The left side 149 shown) on also set up there are one the groove c that extends inwards, and groove c is located on optoelectronic position limited block 14 and limit
The opposite one side of bit architecture 141 (right side 148 as shown in Figure 6), elliptical aperture b are located in groove c.Corresponding right side
148 are fixedly connected with the first mounting portion 1121 of fixed part 112, and optoelectronic position limited block 14 can be by elliptical aperture b realizations
The position adjustment of lower movement.
Preferably, position limiting structure 141 is a longitudinally through recess, and the recess is arranged on optoelectronic position limited block 14
Between upper surface 144 and corresponding lower face 145.One is constituted by the corresponding upper surface 142 of the recess and lower surface 143
Position limiting structure 141.Position limiting structure 141 and optoelectronic position limited block 14 can be preferably set up being an integral structure.
It is further preferred that include being used for the first mounting portion 121 of connecting fulcrum hinge set in one end of lever 12 and connect
The second mounting portion 122 of connects hinge 16 is connect, the tail end of the corresponding other end is separated by a stria 123, described
Tail end is at least partially disposed in position limiting structure 141.Particularly, the upper surface 124 of the tail end and position limiting structure 141
Upper surface 142 coordinates, and the lower face 125 of the tail end coordinates with the lower surface 143 of position limiting structure 141.
When load loading is after on supporting part 111, power is passed to lever 12 by connects hinge 16.12 disequilibrium of lever,
After the long-armed amplification of lever 12, the stria 123 on the tail end of lever 12 deviates original equilbrium position.Photoemission receives
Plate 13 detects that the luminous flux by the stria 123 on lever 12 changes, so as to feed back to weighing sensor circuit device,
It to be promoted to generate corresponding compensation electric current.Electric current flows through the coil positioned at lever long arm end at this time, and coil is in fixed magnetic field
Balancing force (or being equilibrant force) is generated, lever 12 is made to come back to equilibrium state, i.e. stria 123 returns to equilbrium position.Compensation
Circuit part of the electric current through electronic balance carries out a series of data acquisition, data processing can obtain the practical heavy of loaded load
Amount.
When lever 12 receives load and when generating offset, it is excessive to prevent lever 12 from deviating to need the position limiting structure,
So as to achieve the purpose that protect lever 12, fulcrum hinge set (not shown), connects hinge 16.Lever 12 is due to receiving load
When generating offset, it is excessive so as to reach protection lever, fulcrum hinge set, connecting hinge to prevent lever 12 from deviating to need position limiting structure
The purpose of chain.The position limiting structure and optoelectronic position limited block 14 are an integral structure, and can be integrally formed by machining,
Can integral structure be machined by first die casting again, group simple by this setting photoelectrical position sensor modular construction
Fill convenient and cost economy.
In the electronic balance energization stability, upper surface (i.e. the first mating surface of the tail end of lever 12
124) there are gap, the lower end of the tail end of lever 12 between the upper surface of the position limiting structure of optoelectronic position limited block 14 141 142
There is gap between the lower surface 143 of the position limiting structure 141 of face (i.e. the second mating surface 125) and optoelectronic position limited block 14.
When lever 12 is offset up due to the effect by load, the upper surface of the tail end of lever 12 can encounter light
The upper surface 142 of the position limiting structure 141 of electric position limited block 14.The upper surface 142 of position limiting structure 141 plays only lever 12
The effect of shelves, so as to protect lever 12, fulcrum hinge set and connects hinge 16.
When lever 2 is offset downward due to the effect by load, (i.e. second matches for the lower face of the tail end of lever 12
125) conjunction face can encounter the lower surface 143 of the position limiting structure 141 of optoelectronic position limited block 14, the lower surface 143 of position limiting structure 141
Play the role of stop to lever 12, so as to protect lever 12, fulcrum hinge set and connects hinge 16.
In addition, the tail end in lever 12 is at least partially disposed in the position limiting structure 141 of optoelectronic position limited block 14, light
Front end face 146 and corresponding rear end face 147 and the photoemission receiver board 13 of electric position limited block 14 are installed together.
In conclusion the utility model weighing and sensing device assembly and including its electronic balance by photoelectrical position sensor and
It is all disposed on optoelectronic position limited block with the stop configurations for preventing lever tail from reflecting larger offset, forms integral structure,
Can be by machining, it can also be then machining again by first die casting.It is weighed by this structure setting
Sensor module has simple in structure, easy to assembly and cost economic dispatch many advantages.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make these embodiments numerous variations or repair under the premise of the principle and essence without departing substantially from the utility model
Change, but these change and modification each fall within the scope of protection of the utility model.
Claims (10)
1. a kind of weighing and sensing device assembly, for electronic balance, which is characterized in that the weighing and sensing device assembly includes：
Weighing unit, the weighing unit include supporting part, fixed part and are connected to the supporting part and the fixed part
Parallel guidance set together；
Lever, one end of the lever are connect with the supporting part, and the lever is located at the parallel guidance set and described
Between fixed part；
Optoelectronic position limited block, the lower part of the optoelectronic position limited block are fixedly connected with the fixed part, the optoelectronic position
The top of limited block is provided with a position limiting structure, and the tail end of the other end of the lever is threaded through in the position limiting structure, with
Limit the tail end offset of the other end of the lever.
2. weighing and sensing device assembly as described in claim 1, which is characterized in that the weighing and sensing device assembly further includes photoelectricity
Emit receiver board, the photoemission receiver board is fixed in the outside wall surface of the optoelectronic position limited block.
3. weighing and sensing device assembly as claimed in claim 2, which is characterized in that one end of the fixed part extends to supporting part
And gap is equipped between supporting part, the end set of the other end has a mounting portion；
The lower part of the optoelectronic position limited block offers the elliptical aperture of a perforation, and the elliptical aperture and institute are passed through by fixing piece
It states mounting portion and the optoelectronic position limited block is fixed to the fixed part.
4. weighing and sensing device assembly as claimed in claim 3, which is characterized in that the mounting portion of the fixed part be set as one to
The installation groove of interior extension, the installation groove are matched with the lower shape of the optoelectronic position limited block, the optoelectronic position
The lower part of limited block is embedded and is fixedly connected in the installation groove.
5. weighing and sensing device assembly as claimed in claim 3, which is characterized in that outside the lower part of the optoelectronic position limited block
An installation groove extended inwards is provided on wall surface, the elliptical aperture is located in the installation groove, and the installation groove
It is located at the same outside wall surface of the optoelectronic position limited block with the position limiting structure；The mounting portion of the fixed part is set as outside
Prominent lug boss, the lug boss is embedded and is fixedly connected in the installation groove.
6. weighing and sensing device assembly as described in claim 1, which is characterized in that the position limiting structure is longitudinally through recessed for one
Mouthful, the recess is arranged between upper surface and the corresponding lower face of the optoelectronic position limited block.
7. weighing and sensing device assembly as claimed in claim 6, which is characterized in that the tail end of the other end of the lever is by one
A stria separates, and the tail end is at least partially disposed in the position limiting structure, the upper surface of the tail end with it is described
The upper surface cooperation of position limiting structure, the lower face of the tail end and the lower surface of the position limiting structure coordinate.
8. weighing and sensing device assembly as claimed in claim 7, which is characterized in that when electronic balance is in energization stable equilibrium's shape
During state, there is gap between the upper surface of the upper surface of the tail end of the lever and the position limiting structure；The tail of the lever
There is gap between the lower face of end and the lower surface of the position limiting structure.
9. weighing and sensing device assembly as claimed in claim 6, which is characterized in that the position limiting structure and optoelectronic position limited block
It is an integral structure.
10. a kind of electronic balance, which is characterized in that the electronic balance includes title as described in any one of claims 1-9
Weight sensor module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721663674.5U CN207556637U (en) | 2017-12-04 | 2017-12-04 | Weighing and sensing device assembly and the electronic balance for including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721663674.5U CN207556637U (en) | 2017-12-04 | 2017-12-04 | Weighing and sensing device assembly and the electronic balance for including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207556637U true CN207556637U (en) | 2018-06-29 |
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ID=62679071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721663674.5U Active CN207556637U (en) | 2017-12-04 | 2017-12-04 | Weighing and sensing device assembly and the electronic balance for including it |
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| Country | Link |
|---|---|
| CN (1) | CN207556637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870218A (en) * | 2017-12-04 | 2019-06-11 | 梅特勒-托利多仪器（上海）有限公司 | Weighing and sensing device assembly and electronic balance including it |
-
2017
- 2017-12-04 CN CN201721663674.5U patent/CN207556637U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870218A (en) * | 2017-12-04 | 2019-06-11 | 梅特勒-托利多仪器（上海）有限公司 | Weighing and sensing device assembly and electronic balance including it |
| WO2019109857A1 (en) * | 2017-12-04 | 2019-06-13 | Mettler Toledo Instrument (Shanghai) Company Limited | Weighing sensor and electronic balance |
| US11366006B2 (en) | 2017-12-04 | 2022-06-21 | Mettler Toledo Instrument (Shanghai) Company Limited | Weighing sensor and electronic balance having photoelectric position sensor with integrated stop structure |
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