CN103432647A - Warning device for indicating instillation residual content - Google Patents
Warning device for indicating instillation residual content Download PDFInfo
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- CN103432647A CN103432647A CN201310357616XA CN201310357616A CN103432647A CN 103432647 A CN103432647 A CN 103432647A CN 201310357616X A CN201310357616X A CN 201310357616XA CN 201310357616 A CN201310357616 A CN 201310357616A CN 103432647 A CN103432647 A CN 103432647A
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Abstract
The invention discloses an instillation warning device. The warning device comprises a body, a lower hook, a deformation part and a warning circuit, wherein the lower hook is used for hanging of a container which contains instillation liquid, one end of the deformation part is connected to the top end of the body, the other end of the deformation part is connected to the lower hook, the deformation part can deform along with changes of the weight of the instillation liquid hung on the lower hook, and the warning circuit is used for generating a warning signal along with preset deformation of the deformation part. The instillation warning device automatically gives an alarm to people about the residual content of the instillation liquid, the residual condition of the instillation liquid does not need to be continuously watched by a patient or a medical worker, and therefore time and labor of the patient or time and labor of the medial worker are greatly saved.
Description
Technical field
The embodiments of the present invention relate to medical field, relate more specifically to a kind of warning device that is used to indicate the intravenous drip surplus.
Background technology
Intravenous drip has been widely used a kind of therapeutic modality in medical field.Because drip velocity is usually slow and the instillation time is usually very long, in the instillation process, patient or medical personnel need to give more sustained attention the surplus of drip liquid, to prevent fluid drip from completing, do not know.This has expended patient or the long attention of medical personnel.If patient or medical personnel do not go to give more sustained attention the surplus of drip liquid, or due to distractibility at a time between section forget the surplus of paying close attention to drip liquid, may occur to have instiled and situation about not knowing.This likely produces such as disadvantageous results such as blood backs, and will waste patient's time.
Summary of the invention
In view of this, one of purpose of the present invention is to provide a kind of instillation warning device, and it is at least for solving the existing the problems referred to above of instillation process.
An aspect according to the embodiment of the present invention, provide a kind of instillation warning device, and this equipment can comprise: body; Lower draw-bar, be equipped with the container of drip liquid for suspension; Deformation component, the one end is connected to the top of described body, and the other end is connected to described lower draw-bar, and described deformation component can be set to produce distortion with the variation of the drip liquid weight hung on described lower draw-bar; And warning circuit, in response to described deformation component produces predetermined distortion, producing alarm signal.
According to an optional embodiment of the present invention, described deformation component is flexible member; Described warning circuit comprises power supply, alarm, static contact and the moving contact of series connection successively; Wherein said moving contact is coupled between described deformation component and described lower draw-bar, and can be configured to be moved in the effect of the restoring force of described deformation component the position contacted with described static contact, thereby connect described warning circuit, make described alarm send alarm signal.
According to an optional embodiment of the present invention, described instillation warning device also comprises setting device, is arranged to the warning weight of setting the drip liquid hung that triggers described instillation warning device warning.
According to an optional embodiment of the present invention, described setting device comprises: be formed on the one or more settings hole on described body sidewall, each sets on the differing heights on the sidewall that hole is positioned at described body and corresponding different warning weight, and the setting bar that can be arranged in arbitrary described setting hole, and described setting bar is fixedly connected with described static contact or is integrally formed, wherein, described setting bar can be arranged in the setting hole of differing heights so that described static contact has the different distance with respect to the top of described body.
According to an optional embodiment of the present invention, in described setting hole, have at least a position of setting hole to make when described setting bar is arranged in this setting hole, even in the situation that do not hang drip liquid, described moving contact can not contact described static contact yet.
According to an optional embodiment of the present invention, described instillation warning device also comprises a block piece, it is arranged on the highest setting hole height lower than this on body but higher than the position of the natural height of the situation lower moving contact that does not hang drip liquid, or be arranged on lower draw-bar to make and be positioned at the setting hole height the highest lower than this but during higher than the natural height of the situation lower moving contact that does not hang drip liquid, this block piece just in time touches the lower end of body when moving contact.
According to an optional embodiment of the present invention, described deformable member is the strain spring; Described warning circuit comprises power supply, alarm, the first resistor, the second resistor, the 3rd resistor, is fixed to strain resistor device and voltage comparator on described strain spring; Wherein said the first resistor, the second resistor, the 3rd resistor and strain resistor device connect into four arms of Wheatstone bridge, and described the 3rd resistor and described strain resistor device are arranged in same branch road, wherein, two inputs of described voltage comparator connect respectively the mid point of two branch roads of connecting with battery of described Wheatstone bridge, the outfan of described voltage comparator is connected to described alarm, wherein, described warning circuit is configured to the resistance value R when described strain resistor device
3meet R
3<(R
1* R
4)/R
2the time, described alarm sends alarm signal, is wherein R
1the resistance value of the first resistor, R
2be the resistance value of the second resistor, R
4it is the resistance value of the 3rd resistor.
According to an optional embodiment of the present invention, described instillation warning device also comprises: setting device, for setting the warning weight of the drip liquid hung that triggers described instillation warning device warning; Wherein, described setting device comprises rheostat and for the setting button of the resistance value of regulating described rheostat; Any in wherein said first, second, and third resistor is described rheostat, and the different resistance values of described rheostat is corresponding to different warning weight.
According to an optional embodiment of the present invention, described rheostat the resistance value gear of corresponding minimum warning weight be set as when the resistance value by this rheostat is set as described gear, in the situation that do not hang drip liquid, R
3minalso can't meet R
3min<(R
1* R
4)/R
2, thereby alarm can not be triggered, wherein R
3minfor in the situation that do not hang the resistance value of drip liquid strain resistor device.
According to an optional embodiment of the present invention, described setting button be arranged in described body sidewall groove push-pull bar or be positioned at the knob on body.
According to an optional embodiment of the present invention, the weight that the described deformation component of described instillation warning device is configured such that hung drip liquid acts on described deformation component in the mode of pulling force or pressure.
According to an optional embodiment of the present invention, described instillation warning device also comprises signal processing circuit, for drip velocity being reported to the police, outwards sharing the information relevant to instillation and/or carry out Intelligent treatment.
According to an optional embodiment of the present invention, the described body of described instillation warning device also comprises the upper cover that is connected to its top and the lower cover that is connected to its bottom; Described deformation component is connected to described upper cover.
According to an optional embodiment of the present invention, described lower cover can contact with described moving contact, to support at least partly the weight of the drip liquid hung.
Technical scheme according to embodiment of the present invention, by using the surplus automatic alarm of this instillation warning device to drip liquid, give more sustained attention the residue situation of drip liquid without dependent patient or medical personnel, thus the time and efforts of greatly having saved patient or medical personnel.This instillation warning device goes for Different Weight, dissimilar drip liquid, and scalable warning weight, and simple in structure, with low cost and easy operating, thereby there is good broad applicability.
The accompanying drawing explanation
When the detailed description of reading by reference to the accompanying drawings hereinafter exemplary embodiment, these and other purpose, feature and advantage will become apparent, in the accompanying drawings:
Fig. 1 is the profile of the instillation warning device of first embodiment of the invention;
Fig. 2 is the circuit diagram of warning circuit of the instillation warning device of the embodiment in Fig. 1;
Fig. 3 is the front view of the instillation warning device of the embodiment in Fig. 1;
Fig. 4 is the profile of instillation warning device second embodiment of the invention;
Fig. 5 is the circuit diagram of warning circuit of the instillation warning device of the embodiment in Fig. 4;
Fig. 6 is the front view of the instillation warning device of the embodiment in Fig. 4.
The specific embodiment
To describe various embodiment of the present invention in detail by exemplary approach now.Should be appreciated that these embodiments are only exemplary, do not form limitation of the invention.
Fig. 1 is the profile of the instillation warning device of first embodiment of the invention.As shown in Figure 1, this instillation warning device can comprise body 1.Preferably, in body 1, form hollow cavity, to hold other parts, thereby can obtain succinct outward appearance.
According to an optional embodiment of the present invention, on the top of body 1, upper cover 2 removably is installed.Alternatively, be fixed with and link up with 3 on upper cover 2.Upper hook 3 is hanging to for example hook in ward for this liquid is annotated to warning device.
According to an optional embodiment of the present invention, in the bottom of body 1, be removably connected with lower cover 4.Upper cover 2, lower cover 4 and body 1 are jointly around the cavity that forms a sealing, to hold inner body.
In the above-described embodiment, upper cover 2 and lower cover 4 removably connect with body 1, can be convenient to like this installation of inner body.Yet, should be appreciated that upper cover 2 and lower cover 4 are not necessary.For example, can this body 1 is integrally formed directly to install hook on body 1 with upper cover, and lower cover 2 can be omitted.
According to an optional embodiment of the present invention, be provided with a deformation component 5 in body 1, deformation component 5 one ends are fixedly attached to upper cover 2, and its other end is connected to lower draw-bar 7 by a contact plate 6.In one embodiment, deformation component 5 can be a flexible member, is preferably the spiral spring.
According to the embodiment of the present invention, lower draw-bar 7 for hang for example be equipped with drip liquid container, for example container can be sack or the bottle that drip liquid is housed.In technical scheme of the present invention, deformation component 5 can produce elongation strain after the gravity that is subject to the drip liquid on lower draw-bar 7.When the rigidity of deformation component 5 is lower and/or the larger situation of weight drip liquid under, the position that the gravity of drip liquid may make deformation component 5 be stretched to make contact plate 6 touch lower cover 4.Now, lower cover 4 will bear jointly with deformation component 5 weight of drip liquid.
According to an optional embodiment of the present invention, the instillation warning device also comprises a warning circuit, and it preferably is contained in the hollow cavity of body 1.This warning circuit preferably includes moving contact, static contact 8, power supply 9, alarm 10 and the electric wire 11 be positioned on contact plate 6.These devices warning circuit as shown in Figure 2 in series.
According to the embodiment of the present invention, when starting to instil, due to the weight of drip liquid, in maximum, drip liquid is moved lower draw-bar 7 to extreme lower position downwards together with contact plate 6 and flexible member 5, and static contact 8 initially is positioned at the height higher than the extreme lower position of this contact plate 6.Along with drip liquid reduces gradually, the pulling force that deformation component 5 is subject to also reduces gradually, thereby the restoring force of deformation component 5 makes deformation component 5 shrink gradually, thereby the contact plate 6 that deformation component 5 one ends connect also raises gradually, drives thus lower draw-bar 7 and is communicated with drip liquid and together raises.
When the moving contact 6 that rises to its upper surface when contact 6 touches the lower surface of static contact 8, as the warning circuit in Fig. 2 is connected, by power supply 9, to alarm 10 power supplies so that alarm 10 sends alarm signal, remind thus patient or medical personnel's drip liquid to be reduced to warning weight.
The residuals weight of drip liquid just reaches warning weight when warning circuit is connected, need to be in advance by the set positions of static contact 8 to appropriate height.The warning weight (weight that comprises the container that holds drip liquid) of the weight of the natural length of the position of this static contact 8 and deformation component 5, rigidity, contact plate 6 and the lower draw-bar of deformation component 5 and the drip liquid of expectation is relevant.Can obtain the position for the static contact 8 of the warning weight of expecting by simple computation or experiment.For example, for the warning device for single warning weight (this device only has the situation of volumetric standard of the drip liquid of constant weight for hanging device), can static contact 8 be fixed on body 1 according to the position of the static contact 8 of this acquisition.Yet preferably, position that can this static contact 8 is set to adjustable, so that it is corresponding to different warning weight.
Fig. 3 shows the setting device of the warning weight for setting the drip liquid hung that triggers described instillation warning device warning.This setting device comprises one or more setting hole 12 be formed on described body 1 sidewall, wherein each sets on the differing heights on the sidewall that hole 12 is positioned at described body and corresponding different warning weight (as shown in Figure 3), and the setting bar 13 that can be arranged in arbitrary described setting hole 12.
According to the embodiment of the present invention, setting bar 13 is fixedly connected with described static contact 8 or is integrally formed.Setting hole 12 can interconnect by a vertical slotted hole 14, thereby set bar 13, can move in the setting hole 12 of differing heights by this slotted hole 14, so that described static contact 8 has the different distance with respect to the top of described body.Certainly, can calculate or test the height and position of the static contact of a plurality of correspondences for a plurality of different warning weight as required, thereby preset the height in a plurality of settings hole 12.Preferably, each on the sidewall of body set near each corresponding warning weight in setting hole 12 of mark hole 12.Like this, as medical personnel before or after drip liquid is hanging to this warning device, can for example, according to the different container weight that will hang (Different Weight of vial and plastic bag), or according to the warning weight of the drip liquid of expectation (this with the warning of expecting afterwards to the drip liquid actual consumption complete buffer time interval relevant) the setting bar of this warning device is moved in corresponding setting hole, to complete the setting of different warning weight.
According to the embodiment of the present invention, because static contact 8 is set to the differing heights on body 1, thereby moving contact 6 will contact the trigger alarm signal with static contact 8 in the different length position corresponding to deformation component 5.And the different stretch length of deformation component 5 is corresponding to the Different Weight of the drip liquid hung.Therefore, the height of different static contacts 8 is corresponding to different warning weight.
According to the embodiment of the present invention, not hanging drip liquid or not using this warning device alarm device 10 can not be triggered, a switch can be set in addition in warning circuit in order to make.When not using this warning device, this switch cuts out to disconnect warning circuit.
Replacedly, in a preferred implementation, can be without using extra switch, but arrange higher than the height of the situation lower moving contact 6 that does not hang drip liquid by the height that at least one sets hole (be generally the highest set hole), make when the setting bar is arranged in this setting hole, even, in the situation that do not hang drip liquid, described moving contact can not contact described static contact yet.Like this, when not using, by setting bar, be set in this setting hole, warning circuit will can not connected.
Preferably, can also be at the setting hole height the highest lower than this but higher than the position of the natural height of the situation lower moving contact 6 that does not hang drip liquid, one block piece is set on body 1, and this moving contact caused with the horizontal placement of avoiding in due to processes such as transportation, storages this device moves to the position contacted with static contact.This block piece can be the dividing plate of part annular that is positioned at the hollow space of body 1, like this, when static contact 8 being slided into to the highest setting Kong Zhonghou, even owing to falling or when putting upside down this device and causing moving contact to move to making the deformation component compression or bend than natural extended length shorter position, moving contact will be subject to stopping of this dividing plate, and can not move to be positioned at this dividing plate after static contact contact.Can slide through dividing plate from the setting hole of dividing plate below with the setting hole that arrives the dividing plate top and form breach on the dividing plate of this part annular so that set bar.Like this, in the process of undesired this device of placement can appear in transportation or storage etc., can not make this warning device report to the police yet.
Replacedly, also can be at lower draw-bar be positioned on the part outside body 1 setting example as the block piece of projection, so that improperly move to the setting hole height the highest lower than this but during higher than the position of the natural height of the situation lower moving contact 6 that does not hang drip liquid owing to placing when moving contact, this block piece on lower draw-bar just touches lower end or the lower cover on lower end (if having lower cover) of body 1, thereby makes this lower draw-bar and moving contact not to move to the position contacted with static contact again in body.
Simple in structure according to the warning device of this embodiment of the present invention, with low cost, and easy operating, and be applicable to various intravenous drip types.By using this warning device, without the residue situation of constantly paying close attention to drip liquid, thus the time and efforts of having saved patient and medical personnel.
Fig. 4 shows instillation warning device second embodiment of the invention.The main distinction of the first embodiment of this embodiment and Fig. 1-3 is deformation component and warning circuit.According in this embodiment of the present invention, deformation component 5 is a strain spring, and it has the flexible member of comparing in embodiment one and has higher rigidity, and when the action of gravity of drip liquid, thereon the time, the strain spring only produces small distortion.
Second embodiment of the invention, warning circuit comprises power supply 9, alarm 10, the first resistor 14, the second resistor 15, the 3rd resistor 16, is fixed to strain resistor device 17, voltage comparator 18 on described strain spring 5, and they connect into warning circuit as shown in Figure 5.
In this embodiment, described the first resistor 14, the second resistor 15, the 3rd resistor 16 and strain resistor device 17 connect into four arms of Wheatstone bridge, and described the 3rd resistor 16 is arranged in same branch road with described strain resistor device 17, and two inputs of described voltage comparator 18 connect respectively the mid point of two branch roads of connecting with battery of described Wheatstone bridge.Particularly, the in-phase input end of voltage comparator 18 is connected to the mid point of the branch road at the first resistor 14 and the second resistor 15 places, and the reverse input end of voltage comparator 18 is connected to the mid point of the branch road at the 3rd resistance 16 devices and strain resistor device 17 places, and the outfan of voltage comparator 18 is connected to described alarm 10.Described voltage comparator 18 is the standard operation amplifier.
The strain resistor device 17 that is fixed to strain spring 5 produces small strain along with the small stroke of strain spring 5, and when 17 elongation of strain resistor device, its resistance value R3 increases, and when strain resistor device 17 shortens, its resistance value R3 reduces.The first resistor 14 and the second resistor 15 are calibration resistor, have respectively fixing resistance value R1 and R2.Similar to aforementioned the first embodiment, the 3rd resistor 16 can be also the calibration resistor with fixed resistance value, and this is equivalent to form the warning device with single warning weight in the first embodiment.Preferably, the 3rd resistor 16 can be also the rheostat as setting device, and has variable resistance value R4.The excursion of the resistance value of consideration strain resistor device 17 and the sensitivity of detection, reasonably select the resistance value of first, second, and third resistor, make and change to satisfied as the resistance value R3 of strain resistor device 17: during R3<(R1*R4)/R2, the residuals weight of drip liquid reaches the warning weight of expectation.Now, between two inputs of voltage comparator 18, produce positive differential pressure, thereby this voltage comparator 18 will produce positive output voltage, with trigger alarm device 10, send alarm signal.Like this, when the weight of drip liquid is larger, the relatively large strain band dynamic strain resistor 17 of strain spring produces relatively large strain, thereby the resistance value R3 of strain resistor device is larger, the ratio of R3/R4 is greater than the ratio of R1/R2, the anti-phase input terminal voltage of voltage comparator is greater than the voltage of normal phase input end, and the output voltage of voltage comparator is zero or can not trigger alarm device 10 for negative maximum (zero or negative maximum depending on the access way of power supply), thereby alarm 10 is not reported to the police; When reducing to the resistance value R3 that makes strain resistor device 17, drip liquid is reduced to while meeting R3<(R1*R4)/R2, the potential difference opposite sign of the mid point of two branch roads of Wheatstone bridge, make the output voltage of voltage comparator reach positive maximum, thereby trigger alarm device 10 is reported to the police.
Because the resistance value of the first resistor 14 and the second resistor 15 is fixed, thereby the current potential of the mid point of the branch road at first resistor 14 and the second resistor 15 places fixes, and the current potential of the mid point of the branch road at strain resistor device 17 places depends on the resistance value R3 of strain resistor device 17 and the ratio of the resistance value R4 of rheostat 16.Therefore, for different warning weight, produce the positive output voltage of energy trigger alarm device 10 while needing the different variable resistance R4 of setting to change to different value with the resistance value R3 at strain resistor device 17 at the outfan of voltage comparator 18.Can determine a plurality of optional resistance value gear of the 3rd resistor 16 (being rheostat) for a plurality of warning weight of expectation by the mode of calculating or testing equally.The resistance value that the setting button 19 of for example tap that can be by being connected to the 3rd resistor 16 is regulated the 3rd resistor 16.For example, this setting button 19 can be that the elongated slot 20 that is arranged in the sidewall of body 1 also slidably arrives the push-pull bar (as shown in Figure 6) of a plurality of gears, can be also be positioned at a knob on body and can be rotated to a plurality of gears.、
Same, the labelling of corresponding the plurality of warning weight preferably is set on the sidewall of body, so that medical personnel are set to the resistance value of the 3rd resistor the resistance value of corresponding warning weight in use near corresponding a plurality of gears of setting button 19.
Similar to the first embodiment, extra switch can be set in warning circuit to disconnect this warning circuit when not using this warning device.But more preferably, can be by the resistance value R of the minimum gear of the 3rd resistor 16
4be set to be less than (R
3min* R
2)/R
1, R wherein
3minfor in the situation that do not hang the resistance value of drip liquid strain resistor device.Like this, without extra switch, and when the 3rd resistor is adjusted to this minimum gear, in the situation that do not hang drip liquid, R
3minalso can't meet R
3min<(R
1* R
4)/R
2, thereby alarm 10 can not be triggered yet.
Because the potential difference that in this embodiment is two branch road mid points by detecting Wheatstone bridge is determined the resistance change of strain resistor device, those skilled in the art can understand, this first resistor or the second resistor can be made as to rheostat, and the 3rd resistor is made as to the fixing calibration resistor of resistance value, to regulate the potential difference of trigger alarm.By regulating the resistance value of the first resistor or the second resistor, can realize that equally for Different Weight (be differently strained resistance value R
3) meet R
3<(R
1* R
4)/R
2alert if.In the case, for this first or second resistor as rheostat, its resistance value gear of corresponding minimum warning weight can be set as when the resistance value by this rheostat is set as described gear, in the situation that do not hang drip liquid, R
3minalso can't meet R
3min<(R
1* R
4)/R
2, thereby alarm 10 can not be triggered yet.
Although in above-mentioned embodiment, the gravity of drip liquid is all that mode with pulling force acts on deformation component, those skilled in the art can understand, and also the gravity of drip liquid can be acted on deformation component the mode with pressure.For example, in the first embodiment, tensile elasticity element 5 can be replaced with on the lower cover 4 that compression elastic element is fixed on body 1 bottom, and lower draw-bar 7 and contact plate 6 are connected to the upper end of compression elastic element.Like this, the variation of the gravity of drip liquid makes the decrement of compression elastic element (rather than amount of tension) change, thereby, while under the effect of contact plate at compression elastic element, touching static contact 8, connects warning circuit.And in the second embodiment, strain spring 5 can be fixed to equally body 1 bottom under cover, and lower draw-bar 7 is connected to the upper end of compression elastic element, and strain resistor still is fixed to the strain spring.Like this, when drip liquid weight is maximum, strain spring and strain resistor device are farthest compressed, and strain resistor has minimum resistance value; And, along with the alleviating of the weight of drip liquid, the length of strain spring and strain resistor device increases gradually, the resistance value of strain resistor device also increases gradually.Due to the relation of the resistance value of strain resistor device in this configuration and the weight of drip liquid with use this relation in the pulling force configuration contrary, therefore, in corresponding warning circuit, should, by the transposing of the position of the in-phase input end of voltage comparator 18 and inverting input, make the resistance value R when strain resistor device 17
3change to satisfied: R
3>(R
1* R
4)/R
2the time, the voltage signal of voltage comparator 18 output trigger alarm devices 10.
In addition, because the deformation range of strain spring is very little, thereby the spiral elastic element that the size of strain spring is compared in the first embodiment can be shorter, and this makes the volume of warning device can become less.
In more preferred embodiment, the signalization treatment circuit can be gone back in warning device, to realize various additional functions.For example, the numeral that comprises sensor by setting or analog circuit are monitored drip velocity and are reported to the police; Outwards share and the relevant information that instils by communication or lattice network module are set, such as drip velocity and warning message etc. is wirelessly transmitted to nurse station, so that be positioned at the medical personnel of nurse station, concentrate easily the instillation situation of grasping a plurality of patients.This signal processing circuit even can be coupled with actuating mechanism, based on this instillation information, to carry out some Intelligent treatment, such as a speed or surplus according to drip liquid, automatically regulates drip velocity etc.Signal processing circuit can realize by PLD, microprocessor etc., and this is all known to those skilled in the art, and therefore not to repeat here.
For the purpose that illustrates and describe, provided description of the present invention, but it is not intended to be exhaustive or be limited to the invention of disclosed form.It may occur to persons skilled in the art that a lot of modifications and variant.It will be appreciated by those skilled in the art that the method and apparatus in embodiment of the present invention can be with software, hardware, firmware or its combination realization.
Therefore; embodiment is for principle of the present invention, practical application being described better and making the other staff in those skilled in the art can understand following content and select and describe;; under the prerequisite that does not break away from spirit of the present invention, all modifications of making and replacement all will fall in the protection domain of the present invention of claims definition.
Claims (14)
1. an instillation warning device is characterized in that: comprising:
Body;
Lower draw-bar, be equipped with the container of drip liquid for suspension;
Deformation component, the one end is connected to the top of described body, and the other end is connected to described lower draw-bar, and described deformation component can be set to produce distortion with the variation of the drip liquid weight hung on described lower draw-bar; And
Warning circuit, for producing alarm signal in response to described deformation component produces predetermined distortion.
2. instillation warning device according to claim 1 is characterized in that:
Described deformation component is flexible member;
Described warning circuit comprises power supply, alarm, static contact and the moving contact of series connection successively;
Wherein said moving contact is coupled between described deformation component and described lower draw-bar, and can be configured to be moved in the effect of the restoring force of described deformation component the position contacted with described static contact, thereby connect described warning circuit, make described alarm send alarm signal.
3. instillation warning device according to claim 2, is characterized in that: also comprise setting device, be arranged to the warning weight of setting the drip liquid hung that triggers described instillation warning device warning.
4. instillation warning device according to claim 3, it is characterized in that: described setting device comprises:
Be formed on the one or more settings hole on described body sidewall, each sets on the differing heights on the sidewall that hole is positioned at described body and corresponding different warning weight, and
Can be arranged in the setting bar in arbitrary described setting hole, and described setting bar is fixedly connected with described static contact or integrally formed,
Wherein, described setting bar can be arranged in the setting hole of differing heights so that described static contact has the different distance with respect to the top of described body.
5. instillation warning device according to claim 4, it is characterized in that: in described setting hole, have at least a position of setting hole to make when described setting bar is arranged in this setting hole, even in the situation that do not hang drip liquid, described moving contact can not contact described static contact yet.
6. instillation warning device according to claim 5, it is characterized in that: also comprise a block piece, it is arranged on the highest setting hole height lower than this on body but higher than the position of the natural height of the situation lower moving contact that does not hang drip liquid, or be arranged on lower draw-bar to make and be positioned at the setting hole height the highest lower than this but during higher than the natural height of the situation lower moving contact that does not hang drip liquid, this block piece just in time touches the lower end of body when moving contact.
7. instillation warning device according to claim 1 is characterized in that:
Described deformable member is the strain spring;
Described warning circuit comprises power supply, alarm, the first resistor, the second resistor, the 3rd resistor, is fixed to strain resistor device and voltage comparator on described strain spring;
Wherein said the first resistor, the second resistor, the 3rd resistor and strain resistor device connect into four arms of Wheatstone bridge, and described the 3rd resistor and described strain resistor device be arranged in same branch road,
Wherein, two inputs of described voltage comparator connect respectively the mid point of two branch roads of connecting with battery of described Wheatstone bridge, and the outfan of described voltage comparator is connected to described alarm,
Wherein, described warning circuit is configured to the resistance value R when described strain resistor device
3meet R
3<(R
1* R
4)/R
2the time, described alarm sends alarm signal, is wherein R
1the resistance value of the first resistor, R
2be the resistance value of the second resistor, R
4it is the resistance value of the 3rd resistor.
8. instillation warning device according to claim 7 is characterized in that: also comprise:
Setting device, for setting the warning weight of the drip liquid hung that triggers described instillation warning device warning; Wherein, described setting device comprises rheostat and for the setting button of the resistance value of regulating described rheostat; Any in wherein said first, second, and third resistor is described rheostat, and the different resistance values of described rheostat is corresponding to different warning weight.
9. instillation warning device according to claim 8, it is characterized in that: described rheostat the resistance value gear of corresponding minimum warning weight be set as when the resistance value by this rheostat is set as described gear, in the situation that do not hang drip liquid, R
3minalso can't meet R
3min<(R
1* R
4)/R
2, thereby alarm can not be triggered, wherein R
3minfor in the situation that do not hang the resistance value of drip liquid strain resistor device.
10. instillation warning device according to claim 8 is characterized in that: described setting button be arranged in described body sidewall groove push-pull bar or be positioned at the knob on body.
11., according to the described instillation warning device of any one in claim 1-10, it is characterized in that: the weight that described deformation component is configured such that hung drip liquid acts on described deformation component in the mode of pulling force or pressure.
12., according to the described instillation warning device of any one in claim 1-10, it is characterized in that: also comprise signal processing circuit, for drip velocity being reported to the police, outwards sharing the information relevant to instillation and/or carry out Intelligent treatment.
13., according to the described instillation warning device of any one in claim 1-10, it is characterized in that: described body also comprises the upper cover that is connected to its top and the lower cover that is connected to its bottom; Described deformation component is connected to described upper cover.
14. according to the described instillation warning device of any one in claim 2-6, it is characterized in that: described lower cover can contact with described moving contact, to support at least partly the weight of the drip liquid hung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310357616XA CN103432647A (en) | 2013-08-16 | 2013-08-16 | Warning device for indicating instillation residual content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310357616XA CN103432647A (en) | 2013-08-16 | 2013-08-16 | Warning device for indicating instillation residual content |
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| Publication Number | Publication Date |
|---|---|
| CN103432647A true CN103432647A (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310357616XA Pending CN103432647A (en) | 2013-08-16 | 2013-08-16 | Warning device for indicating instillation residual content |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490262A (en) * | 2018-03-02 | 2018-09-04 | 北京强度环境研究所 | The resistance change of measuring circuit and the method for detecting hit phenomenon |
| CN108837219A (en) * | 2018-07-06 | 2018-11-20 | 孙悦 | A kind of tote apparatus with warning function |
-
2013
- 2013-08-16 CN CN201310357616XA patent/CN103432647A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490262A (en) * | 2018-03-02 | 2018-09-04 | 北京强度环境研究所 | The resistance change of measuring circuit and the method for detecting hit phenomenon |
| CN108837219A (en) * | 2018-07-06 | 2018-11-20 | 孙悦 | A kind of tote apparatus with warning function |
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