CN103822695B - A kind of weighing device of self-shield - Google Patents
A kind of weighing device of self-shield Download PDFInfo
- Publication number
- CN103822695B CN103822695B CN201410070833.5A CN201410070833A CN103822695B CN 103822695 B CN103822695 B CN 103822695B CN 201410070833 A CN201410070833 A CN 201410070833A CN 103822695 B CN103822695 B CN 103822695B
- Authority
- CN
- China
- Prior art keywords
- pole
- load cells
- weighing device
- bending
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Force In General (AREA)
Abstract
The invention discloses a kind of weighing device of self-shield; relate to a kind of weighing device; comprise pole and LOAD CELLS; also comprise the radial moment protection mechanism connecting described pole and LOAD CELLS; described radial moment protection mechanism comprises and connects described pole and LOAD CELLS and can with pole radial force towards the cardan universal joint component that radial any direction is bending, and can bend with described cardan universal joint component and be out of shape the elastic component that stops described cardan universal joint component bending.The present invention is a kind of weighing device that can carry out self-protection to crucial LOAD CELLS, makes whole weighing device can continue for a long time reliably to use.
Description
Technical field
The present invention relates to a kind of weighing device.
Background technology
Adopting in blood transfusion industry, be common equipment in order to weigh the weighing device of blood plasma collecting bottle or blood plasma collecting bag, wherein critical component is LOAD CELLS.LOAD CELLS is device quality signal being changed into the output of measurable electric signal, and based on this principle of work, LOAD CELLS is very sensitive to external force reaction, if external force is once exceed the maximum load of sensor, will causes weighing and be forbidden.Existing technical scheme is all the outer adjutage pole of LOAD CELLS, pole load or carry blood plasma collecting bottle or blood plasma collecting bag.Wherein, pole or be horizontal long cantilever, if now mounting receiving flask or collecting bag careless manipulation is pressed into straight-arm, is having larger moment and is being delivered to LOAD CELLS, damaging sensor, causes weighing inaccurate; Pole is uprightly long-armed, can produce F when now mounting or win collecting bag, and the arm of force of power F is very long, can produce larger moment, and this moment can be directly delivered to LOAD CELLS, and LOAD CELLS is easy to damage.All lack the protection to critical component LOAD CELLS in the various weighing devices of prior art, cause whole weighing device to be easy to occur misalignment and damage problem.
Summary of the invention
The object of the invention is to: propose a kind of weighing device that can carry out self-protection to crucial LOAD CELLS, make whole weighing device can continue for a long time reliably to use.
Object of the present invention is realized by following technical proposals:
A kind of weighing device of self-shield; comprise pole and LOAD CELLS; also comprise the radial moment protection mechanism connecting described pole and LOAD CELLS; described radial moment protection mechanism comprises and connects described pole and LOAD CELLS and can with pole radial force towards the cardan universal joint component that radial any direction is bending, and can bend with described cardan universal joint component and be out of shape the elastic component that stops described cardan universal joint component bending.
In such scheme, the flexible transition that radial moment protection mechanism achieves between the pole of rigidity and LOAD CELLS connects, the excessive radial power putting on rigidity pole is converted into the little axial force that radially force moment protection mechanism transmits simultaneously, namely realize while excessive radial tries hard to keep and protect, the primary gravity of blood plasma collecting bottle or blood plasma collecting bag is still reduced to the acting force (similar Action of Gravity Field) vertically acting on LOAD CELLS: cardan universal joint component achieves flexibly connecting of pole and LOAD CELLS, the inclination of pole under radial force effect is converted into the bending of cardan universal joint component, avoid excessive radial force F and be directly delivered to LOAD CELLS.Elastic component, its effect be maintain pole opposed vertical state and achieve flexibly connecting of pole and LOAD CELLS, cardan universal joint component bending is further converted to resilient force on the vertical direction of elastic component in LOAD CELLS, avoids excessive radial moment and be directly delivered to LOAD CELLS.By the size of regulating spring power, the size being delivered to LOAD CELLS moment can be controlled, fully play the effect of protection.
As selection 1, described cardan universal joint component comprises the upper coupling connecting described pole, connect the lower coupler of described LOAD CELLS, two ends connect the bending joint of described upper coupling and lower coupler respectively, and with described upper coupling fixing elastic component overhead gage, with the elastic component lower baffle plate that described lower coupler is fixing, between described elastic component overhead gage and elastic component lower baffle plate, be provided with described elastic component, described bending energy-conservation bending towards radial any direction with described pole radial force.
In such scheme; the inclination of pole under radial force effect is converted into the bending of bending joint by bending joint; the inclination of the sagging zone dynamic elasticity part overhead gage of bending joint; the inclination of elastic component overhead gage makes elastic component be compressed; bending joint bending is further converted to resilient force on the vertical direction of elastic component in LOAD CELLS by the compression deformation of elastic component, realizes the protection to LOAD CELLS thus.
As the selection 2 of selection 1, described bending joint comprises the coupling block that each internode of at least two joints is connected by middle shaft coupling, and described coupling block is distinguished hinged by the fixed pin of its interior two intersecting vertical and other bending parts that save at its two ends.
In such scheme, coupling block is distinguished hinged by the fixed pin of its interior two intersecting vertical and other bending parts that save at its two ends, can rotate relative to the four-way of direction all around towards radial direction between these bending joint parts thus, and the series connection of at least two joint coupling blocks, realize thus whole bending joint towards any direction of radial direction bending/rotate.
As the selection 3 of selection 2, described bending joint comprises upper and lower two and saves the coupling block connected by middle shaft coupling, wherein upper joint coupling block by the fixed pin of two intersecting vertical respectively with upper coupling and middle shaft coupling hinged, lower joint coupling block by the fixed pin of two intersecting vertical respectively with middle shaft coupling and lower coupler hinged, and save up and down coupling block relatively in shaft coupling be symmetrical arranged.
In such scheme, by coupling block, upper coupling can relative in shaft coupling four-way rotate, middle shaft coupling can rotate relative to lower coupler device four-way, and upper coupling can lower coupler universal rotational relatively thus.
As selection 4, described elastic component is the spring wrapping up described cardan universal joint component.
As selection 5; also comprise the sensor fixation plate fixing with described LOAD CELLS; described sensor fixation plate is fixed away from one end of described radial moment protection mechanism and described LOAD CELLS, and leaves gap near the other end of radial moment protection mechanism and LOAD CELLS bottom surface.
In such scheme; the far-end of LOAD CELLS is fixed on sensor fixation plate; the near-end (one end near radial moment protection mechanism) of LOAD CELLS and sensor fixation plate leave a certain amount of gap; when hanging certain permission load on pole; the near-end of LOAD CELLS can be sagging; gap is reduced, but LOAD CELLS near-end can not contact with sensor fixation plate.But when if the load of pole exceedes allowance, the near-end sag of chain of heavy sensor can be suitable with gap, and contact with sensor fixation plate, too much load can directly be shared on fixed head, thus protection LOAD CELLS.
As the selection 6 of selection 5, also comprise the support fixing with described sensor fixation plate, described support comprises the support column fixing with described sensor fixation plate, and with described support column fixing panel, described panel has hole, described pole is passed from this hole, and leaves gap between pole wall and hole wall.
In such scheme, hole and have suitable gap with pole.Its objective is: when pole is subject to excessive radial force F, power F can overcome spring force makes pole toward deflection, when the angle of deflection is greater than both gaps, hole will with the end thereof contacts of universal joint, thus play the effect of protection.Hole also serves and avoids the effect that excessive radial moment is directly delivered to LOAD CELLS.
As the selection 7 of selection 6, also comprise the sheath be placed on pole, described sheath is fixed in described hole, leaves gap between described jacket inner wall and pole wall.
In such scheme, sheath is adopted to realize the protective effect of aforementioned apertures to pole.
As selection 8, described pole is a L shape part, and top is provided with hook.
In such scheme, link up with in order to carry blood plasma collecting bottle or blood plasma collecting bag.
The main scheme of aforementioned the present invention and each further selection scheme thereof can independent assortment to form multiple scheme; be the present invention can adopt and claimed scheme: as the present invention; each selection can select combination in any with other; those skilled in the art can understand there is multiple combination according to prior art and common practise after understanding the present invention program, do not do exhaustive at this.
Beneficial effect of the present invention: only by the dynamic changes process in range of weighing to LOAD CELLS; the load exceeded outside range of weighing is shared by other structural member; thus protect LOAD CELLS fully; improve the weighing precision of electronic scales, make whole weighing device can continue for a long time reliably to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the cardan universal joint component of the embodiment of the present invention;
In figure, 1. shaft coupling 25. spring lower baffle plate 26. lower coupler 27. fixed pin in sheath 2. cardan universal joint component 3. spring 4. sensor fixation plate 5. LOAD CELLS 6. support column 7. pole 8. panel 81. hole 21. upper coupling 22. spring overhead gage 23. coupling block 24..
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
As shown in Figures 1 to 3; a kind of weighing device of self-shield; comprise pole 7 and LOAD CELLS 5; also comprise the radial moment protection mechanism connecting pole 7 and LOAD CELLS 5; radial moment protection mechanism comprises and connects pole 7 and LOAD CELLS 5 and can with pole 7 radial force towards the cardan universal joint component 2 that radial any direction is bending, and can distortion bends to stop cardan universal joint component 2 with cardan universal joint component 2 is bending elastic component.As selection, as shown in this embodiment, elastic component is the spring 3 of parcel cardan universal joint component 2.Weighing device also comprises the sensor fixation plate 4 fixing with LOAD CELLS 5; sensor fixation plate 4 is fixed away from one end of radial moment protection mechanism and LOAD CELLS 5, and leaves gap (as shown in Figure 2) near the other end of radial moment protection mechanism and LOAD CELLS 5 bottom surface.Weighing device also comprises the support fixing with sensor fixation plate 4, support comprises the support column 6 fixing with sensor fixation plate 4, and the panel 8 fixing with support column 6, and panel 8 has hole 81, pole 7 is passed from this hole 81, and leaves gap between pole 7 wall and hole 81 wall.Weighing device also comprises the sheath 1 be placed on pole 7, and sheath 1 is fixed in hole 81, leaves gap between sheath 1 inwall and pole 7 wall.Pole 7 is a L shape part, and top is provided with hook, links up with in order to carry blood plasma collecting bottle or blood plasma collecting bag.
Cardan universal joint component 2 comprises the upper coupling 21 connecting pole 7, connect the lower coupler 26 of LOAD CELLS 5, two ends connect the bending joint of upper coupling 21 and lower coupler 26 respectively, and with upper coupling 21 fixing spring overhead gage 22, with the spring lower baffle plate 25 that lower coupler 26 is fixing, spring 3 is provided with between spring overhead gage 22 and spring lower baffle plate 25, bending energy-conservation bending towards radial any direction with pole 7 radial force.Bending joint comprises the coupling block 23 that connected by middle shaft coupling 24 of each internode of at least two joints, and bending save parts difference hinged by other of the fixed pin 27 of its interior two intersecting vertical and its two ends for coupling block 23.As selection, as shown in this embodiment, bending joint comprises upper and lower two and saves the coupling block 23 connected by middle shaft coupling 24, wherein upper joint coupling block 23 by the fixed pin 27 of two intersecting vertical respectively with upper coupling 21 and middle shaft coupling 24 hinged, lower joint coupling block 23 by the fixed pin 27 of two intersecting vertical respectively with middle shaft coupling 24 and lower coupler 26 hinged, and save up and down coupling block 23 relatively in shaft coupling 24 be symmetrical arranged.As shown in Figure 3, upper joint coupling block 23 is hinged with upper coupling 21 by the fixed pin 27 of parallel paper, hinged by fixed pin 27 and the middle shaft coupling 24 of vertical paper; Lower joint coupling block 23 is hinged with middle shaft coupling 24 by the fixed pin 27 of vertical paper, hinged by fixed pin 27 lower coupler 26 of parallel paper.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the weighing device of a self-shield; comprise pole and LOAD CELLS; it is characterized in that: also comprise the radial moment protection mechanism connecting described pole and LOAD CELLS; described radial moment protection mechanism comprises and connects described pole and LOAD CELLS and can with pole radial force towards the cardan universal joint component that radial any direction is bending; and can bend with described cardan universal joint component and be out of shape to stop the elastic component that described cardan universal joint component is bending, described elastic component is the spring wrapping up described cardan universal joint component.
2. the weighing device of self-shield as claimed in claim 1; it is characterized in that: described cardan universal joint component comprises the upper coupling connecting described pole; connect the lower coupler of described LOAD CELLS; two ends connect the bending joint of described upper coupling and lower coupler respectively; and with described upper coupling fixing elastic component overhead gage; with the elastic component lower baffle plate that described lower coupler is fixing; described elastic component is provided with between described elastic component overhead gage and elastic component lower baffle plate, described bending energy-conservation bending towards radial any direction with described pole radial force.
3. the weighing device of self-shield as claimed in claim 2; it is characterized in that: described bending joint comprises the coupling block that each internode of at least two joints is connected by middle shaft coupling, described coupling block is distinguished hinged by the fixed pin of its interior two intersecting vertical and other bending parts that save at its two ends.
4. the weighing device of self-shield as claimed in claim 3; it is characterized in that: described bending joint comprises upper and lower two and saves the coupling block connected by middle shaft coupling; wherein upper joint coupling block by the fixed pin of two intersecting vertical respectively with upper coupling and middle shaft coupling hinged; lower joint coupling block by the fixed pin of two intersecting vertical respectively with middle shaft coupling and lower coupler hinged, and save up and down coupling block relatively in shaft coupling be symmetrical arranged.
5. the weighing device of self-shield as claimed in claim 1; it is characterized in that: also comprise the sensor fixation plate fixing with described LOAD CELLS; described sensor fixation plate is fixed away from one end of described radial moment protection mechanism and described LOAD CELLS, and leaves gap near the other end of radial moment protection mechanism and LOAD CELLS bottom surface.
6. the weighing device of self-shield as claimed in claim 5; it is characterized in that: also comprise the support fixing with described sensor fixation plate; described support comprises the support column fixing with described sensor fixation plate; and with described support column fixing panel; described panel has hole; described pole is passed from this hole, and leaves gap between pole wall and hole wall.
7. the weighing device of self-shield as claimed in claim 6, it is characterized in that: also comprise the sheath be placed on pole, described sheath is fixed in described hole, leaves gap between described jacket inner wall and pole wall.
8. the weighing device of self-shield as claimed in claim 1, is characterized in that: described pole is a L shape part, and top is provided with hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070833.5A CN103822695B (en) | 2014-02-28 | 2014-02-28 | A kind of weighing device of self-shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070833.5A CN103822695B (en) | 2014-02-28 | 2014-02-28 | A kind of weighing device of self-shield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103822695A CN103822695A (en) | 2014-05-28 |
| CN103822695B true CN103822695B (en) | 2016-04-27 |
Family
ID=50757868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410070833.5A Active CN103822695B (en) | 2014-02-28 | 2014-02-28 | A kind of weighing device of self-shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103822695B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910818A (en) * | 2016-06-27 | 2016-08-31 | 江苏兰菱机电科技有限公司 | Efficiency curve testing device |
| CN108387305A (en) * | 2018-01-16 | 2018-08-10 | 安徽智敏电气技术有限公司 | A kind of protective device of weighing sensor |
| CN108760012A (en) * | 2018-08-16 | 2018-11-06 | 蚌埠市万达电子有限公司 | A method of weighing sensor anti-side is improved to load-carrying ability |
| CN108760011B (en) * | 2018-08-16 | 2020-10-23 | 蚌埠市万达电子有限公司 | Fixing piece for weighing sensor |
| CN111238622B (en) * | 2020-03-20 | 2021-10-01 | 四川南格尔生物科技有限公司 | Weighing sensor protection architecture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349561Y (en) * | 1998-09-29 | 1999-11-17 | 济南金钟电子衡器股份有限公司 | Flexible support for weighing apparatus |
| CN1789929A (en) * | 2004-12-14 | 2006-06-21 | 梅特勒-托莱多有限公司 | Weighing module having an overload protection arrangement |
| CN203069259U (en) * | 2013-01-08 | 2013-07-17 | 中山佳维电子有限公司 | Four-point type electronic platform balance having universal adjusting supporting-leg assembly |
| CN203745069U (en) * | 2014-02-28 | 2014-07-30 | 四川南格尔生物科技有限公司 | Self-protective weighing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294321A (en) * | 1994-04-28 | 1995-11-10 | Shimadzu Corp | Weight measuring apparatus |
| DE10224123B4 (en) * | 2002-05-29 | 2005-03-31 | Mettler-Toledo Gmbh | Device for operating state monitoring for a balance |
-
2014
- 2014-02-28 CN CN201410070833.5A patent/CN103822695B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349561Y (en) * | 1998-09-29 | 1999-11-17 | 济南金钟电子衡器股份有限公司 | Flexible support for weighing apparatus |
| CN1789929A (en) * | 2004-12-14 | 2006-06-21 | 梅特勒-托莱多有限公司 | Weighing module having an overload protection arrangement |
| CN203069259U (en) * | 2013-01-08 | 2013-07-17 | 中山佳维电子有限公司 | Four-point type electronic platform balance having universal adjusting supporting-leg assembly |
| CN203745069U (en) * | 2014-02-28 | 2014-07-30 | 四川南格尔生物科技有限公司 | Self-protective weighing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103822695A (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103822695B (en) | A kind of weighing device of self-shield | |
| CN101650213A (en) | Device for monitoring storage amount of container | |
| CN102998254A (en) | Micro friction force measuring device | |
| CN203745069U (en) | Self-protective weighing device | |
| CN210757838U (en) | Adjusting structure of robot | |
| CN203148625U (en) | Device for calibration of large strain sensor | |
| CN204612803U (en) | A kind of protective device of LOAD CELLS | |
| CN209589285U (en) | A kind of sintering furnace electric thermo-couple protector | |
| CN102661831B (en) | Reversing arrangement, vibroshock dynamometer machine pull to force value calibrating installation and calibration steps | |
| CN105460291A (en) | X-shaped encapsulating clamp | |
| CN209671886U (en) | A kind of electric automatization overhaul of the equipments protective device | |
| CN211651906U (en) | Electromechanical device with torque sensor | |
| CN207231684U (en) | Improve the tension force transmitter mounting shell of security performance | |
| CN205209865U (en) | A four -point bending device for combined loading complete sets | |
| CN209069466U (en) | A kind of pressure sensor auxiliary device | |
| CN209012747U (en) | A kind of caliper damping device | |
| CN208998922U (en) | A kind of platform balance support device | |
| CN207600581U (en) | A kind of elongated material metage device | |
| CN206029874U (en) | Manipulator | |
| CN110361283A (en) | A kind of high temperature fretting wear experimental rig | |
| CN107907083A (en) | A kind of mounting bracket of displacement sensor | |
| CN108871625A (en) | A kind of novel spring dynamometer | |
| CN204612797U (en) | Electronic balance reed link fixture | |
| CN208932833U (en) | A kind of accurate formula limiter of moment | |
| CN210966512U (en) | Novel bending machine controller device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |