CN205958402U - Liquid density measurement device - Google Patents
Liquid density measurement device Download PDFInfo
- Publication number
- CN205958402U CN205958402U CN201620904643.3U CN201620904643U CN205958402U CN 205958402 U CN205958402 U CN 205958402U CN 201620904643 U CN201620904643 U CN 201620904643U CN 205958402 U CN205958402 U CN 205958402U
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- Prior art keywords
- liquid
- liquid storage
- storage tube
- measurement device
- density measurement
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Abstract
The utility model discloses a liquid density measurement device, including a pair of upper end open -ended have the branch pipe store the liquid pipe, a pair of passing is located store the sealing plug on the upper end opening of liquid pipe and insert store measurement tubule, the connection in the intraductal chamber of liquid the coupling hose of branch pipe, keep store the vertical vertical installation mechanism who upwards places of liquid pipe, vertical installation mechanism includes mutually perpendicular's vertical mounting panel and horizontal mounting plate, a pair of locating vertical spacing fixed subassembly on the vertical mounting panel. The utility model discloses simple structure, the preparation is convenient, and low cost can more accurately obtain the liquid density data to the measurement of more conveniently carrying out different density liquid is switched over.
Description
Technical field
The utility model is related to teaching experimental equipment field, particularly to a kind of liquid density measurement device.
Background technology
" density of measurement liquid " is one of Fundamental Physics Experiments of middle school period, generally right for testing with the density of salt solution
As.Conventional method is mainly to utilize the gentle graduated cylinder in sky, fills appropriate salt solution and is placed on weigh up burning on the balance regulating in beaker
Cup and gross mass m1 of salt solution, then by the salt solution in beaker fall a part of measure its volume V to graduated cylinder, remaining salt solution will be filled
Beaker be placed on balance, measure gross mass m2 of beaker and residual brine, then the mesohalobic quality of graduated cylinder be m1-m2, according to ρ
=m/V obtain ρ salt solution=（m1-m2）/V.The operating process of experiment is more, cumbersome, and experiment needs to obtain 3 item data, each
The acquirement of data all can produce with scale-factor error, error in reading, the error based on the error of zero, and in order that the reading of graduated cylinder
Number is more accurate, often adds the salt solution in decrement cylinder using glue head dropper, but will certainly in glue head dropper residual fraction salt solution,
Make the brine volume in graduated cylinder less than normal, the accuracy of impact experimental result.
Utility model content
The purpose of this utility model be provide a kind of liquid density measurement device, can overcome the deficiencies in the prior art it
Place, more accurately obtains fluid density data, and the more convenient measurement switching carrying out different densities liquid.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of liquid density measurement device, including a pair of upper end open have arm liquid storage tube, a pair pass through located at
Sealing-plug in the upper end open of described liquid storage tube and insert the measurement tubule of described reservoir tube cavity, connect the company of described arm
Connect flexible pipe, keep the vertically-mounted mechanism placed straight up of described liquid storage tube；Described vertically-mounted mechanism includes being mutually perpendicular to
Horizontal mounting plate and horizontal mounting plate, a pair vertically spacing fixation kit in described horizontal mounting plate.
Preferably, described vertically spacing fixation kit include with described horizontal mounting plate be connected fixed block with described
Fixed block rotates the junction piece connecting；Described fixed block is provided with the first groove being adapted with described reservoir tube wall, rotating shaft,
Described junction piece is provided with the second groove being adapted with described reservoir tube wall, the connection for being connected with described axis of rotation
Block.
Preferably, described first groove is on the first composition surface of the relatively described junction piece of described fixed block, described
Second groove is on the second composition surface of the relatively described fixed block of described junction piece.
Preferably, described vertically spacing fixation kit is also included for being engaged simultaneously described fixed block with described junction piece
The locking member of locking；Described locking member includes on described first composition surface the screwed hole of side, located at described joint
The elastic sliding part that cross described second composition surface vertical with described screwed hole the same side on block, described junction piece be provided with
The ladder hole of described elastic sliding part coupling.
Preferably, described elastic sliding part include with the slide core of the big interporal lacuna cooperation of described ladder hole, externally protrude out in
The diameter of the knob of described junction piece, coaxially connected described slide core and described knob is less than the hole diameter of described ladder hole
Transition axis, be coated on described transition axis and both ends of the surface respectively with the opposite end face of described slide core and described ladder hole against
Spring.
Preferably, the slide core side of described elastic sliding part is intended for described screwed hole, described slide core end have with
The thread head that described screwed hole is adapted.
Preferably, described first groove surfaces and described second groove surfaces are covered with the thin pad of buffering.
Preferably, being installed with the guiding porous plate being available for that described measurement tubule passes through in described liquid storage tube.
Preferably, the quarter being adapted with described measurement capillary length is vertically provided with a pair on described horizontal mounting plate
Degree, described horizontal mounting plate is provided with a pair Auxiliary support pad being adapted with described liquid storage tube bottom shape.
In sum, the utility model has the advantages that：
According to hydrostatics, using the static pressure that two fluid columns in confined space are produced with fluid column bottom surface balance each other former
Reason, draws F1=F2, i.e. P1S1=P2S2, when two fluid column sectional areas are equal, that is, during S1=S2, the pressure of two fluid columns is equal, i.e. P1=
P2, that is, ρ 1h1g=ρ 2h2g is it is assumed that form the density p 2 of the liquid of wherein one fluid column it is known that then forming the liquid of another fluid column
Density p 1=h2 ρ 2/h1, the numerical value of h1, h2 can directly record.
A kind of liquid density measurement device, using above-mentioned principle, using a pair connected liquid storage tube being inserted with measurement tubule,
It is pre-loaded with the liquid of known density wherein in a liquid storage tube（Such as water）, it is poured slowly in another liquid storage tube and treat in right amount
Survey liquid, form the confined space of connection between two liquid storage tubes, continue to be slowly dropped into testing liquid, make the fluid column in two liquid storage tubes
Form the proper height being suitable to reading, finally replenished using glue head dropper, read liquid-column height, you can record by simple computation
The density of liquid, convenient and swift；The setting of vertically-mounted mechanism makes two liquid storage tubes remain vertical, and measurement tubule passes through sealing
Guiding porous plate in plug and liquid storage tube is positioned, and makes measurement tubule and liquid storage tube keeping parallelism, that is, ensure in measurement tubule
Fluid column top surface and liquid storage tube in fluid column bottom surface all the time with horizontal mounting plate on scale keeping parallelism, improve liquid-column height
The precision of reading, reduces error in reading, and eliminates the impact of the systematic errors such as the error of zero, and the density values recording are more accurate
Really, and only the liquid storage tube on the prepare liquid side of use need to be changed, you can carry out the density measure of other liquid, carry
The high measurement efficiency of multiple testing liquids.
Brief description
Fig. 1 is the structural representation of the utility model one embodiment；
Fig. 2 is the structural representation of vertically spacing fixation kit；
Fig. 3 is the structural representation of locking member.
Specific embodiment
Below in conjunction with the accompanying drawings and preferred scheme the utility model is described in more detail.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Embodiment：As shown in figure 1, a kind of liquid density measurement device, including a pair of upper end open, there is arm 21
Liquid storage tube 2, sealing-plug 23 in the upper end open of described liquid storage tube 2 is passed through for a pair to insert described liquid storage tube 2 inner chamber
The vertically-mounted mechanism that measurement tubule 3, the connection flexible pipe 5 connecting described arm 21, the described liquid storage tube 2 of holding are placed straight up
1；Described vertically-mounted mechanism 1 include orthogonal horizontal mounting plate 11 and horizontal mounting plate 12, a pair located at described vertically
Vertically spacing fixation kit 4 on installing plate 11；It is installed with the guiding being available for that described measurement tubule 3 passes through in described liquid storage tube 2
Porous plate 22.It is equipped with, in sealing-plug 23 and guiding porous plate 22, the centre bore passing through for measurement tubule 3, and two centre bores are coaxial
Parallel to the axis of liquid storage tube 2, both remain parallel after insertion liquid storage tube 2 to make measurement tubule 3 on ground；Two liquid storage tubes 2
It is connected by the connection flexible pipe 5 on arm 21, so that two liquid storage tubes 2 is interconnected.
Further, as Fig. 2, described vertically spacing fixation kit 4 includes the fixation being connected with described horizontal mounting plate 11
Block 41 rotates, with described fixed block 41, the junction piece 42 being connected；Described fixed block 41 is provided with is fitted with described liquid storage tube 2 tube wall phase
The first groove 43 of answering, rotating shaft 44, described junction piece 42 be provided with the second groove 45 being adapted with described liquid storage tube 2 tube wall,
For rotating, with described rotating shaft 44, the contiguous block 46 being connected；Described first groove 43 is located at the relatively described joint of described fixed block 41
On first composition surface 411 of block 42, described second groove 45 connects located at the second of the relatively described fixed block 41 of described junction piece 42
On conjunction face 421.Fixed block 41 and horizontal mounting plate 11 using " plane and two pitses " positioning, be aided with screw fastening by the way of carry out company
Connect, keep the first groove 43 axis direction consistent with vertical direction, rotating shaft 44 runs through contiguous block 46, by fixed block 41 with engage
Block 42 is transferred together, makes the axis direction of the second groove 45 also consistent with vertical direction.
Further, as shown in Figure 2,3, described vertically spacing fixation kit 4 also include for by described fixed block 41 with
The locking member 47 that described junction piece 42 engages and locks；Described locking member 47 is included on described first composition surface 411
The screwed hole 471 of side, cross described second and engage with the vertical of described screwed hole 471 the same side on described junction piece 42
The elastic sliding part 48 in face 421, described junction piece 42 is provided with the ladder hole 422 mating with described elastic sliding part 48；Institute
State elastic sliding part 48 include with the slide core 482 of the big interporal lacuna cooperation of described ladder hole 422, externally protrude out in described junction piece 42
Knob 483, the diameter of coaxially connected described slide core 482 and described knob 483 be less than the hole diameter of described ladder hole 422
Transition axis 484, be coated on described transition axis 484 and both ends of the surface respectively with described slide core 482 and described ladder hole 422
Opposite end face against spring 485；Described slide core 482 end has the thread head 481 being adapted with described screwed hole 471.
When junction piece 42 needs to be engaged with fixed block 41, hold knob 483 by elastic sliding part 48 along rotating shaft 44 rotation direction screw thread
Hole 471, makes the thread head 481 of slide core 482 end be directed at screwed hole 471, knob 483 is gently pulled outward, prevents from rotating through
Cheng Zhong, the thread head 481 of evagination is contacted with the first faying face 411 and hinders the carrying out of rotation, and thread head 481 is directed at screwed hole
After 471, you can carry out screw-threaded coupling.The ridge number of described screwed hole 471 is 5-6 tooth, is carried out with shorter reach
Connect it is ensured that fastening reliability and preventing fastening force excessive, it is to avoid damage and be installed between the first groove 43 and the second groove 45
Object.
When the Preparatory work of experiment stage, vertically-mounted mechanism 1 is steadily positioned on level table, so that horizontal mounting plate 11 is protected
Hold vertically, horizontal mounting plate 12 keeps level, measurement tubule 3 is passed through sealing-plug 23 to extend into liquid storage tube with guiding porous plate 22
In 2, and measure the bottom of tubule 3 close proximity to liquid storage tube 2 bottom, now locking member 47 is in opening, is horizontally mounted
Plate 12 is provided with a pair Auxiliary support pad 14 being adapted with described liquid storage tube 2 bottom shape, with Auxiliary support pad 14 and reservoir
The contact of pipe 2 bottom is fulcrum, by liquid storage tube 2 tube wall against the first groove 43, now buttresses liquid storage tube 2, another hand rotation on the other hand
Turn junction piece 42, by thread head 481 to screwed hole 471 and then screw, so that the first groove 43 is filled the span of a man's arms with the second groove 45 and store
Liquid pipe 2 tube wall, is connected firmly, and makes liquid storage tube 2 all keep vertical with measurement tubule 3；First groove 43 surface and the second groove 45
Surface is covered with the thin pad 49 of buffering, and the short thread setting buffering setting and the screwed hole 471 of thin pad 49 prevents the first groove 43 and the
Two groove 45 excessive compression liquid storage tube 2, it is to avoid damage liquid storage tube 2.Complete the installation of liquid storage tube 2 and vertically spacing fixation kit 4
Afterwards, the normal fluid of appropriate known density, such as water are injected in wherein liquid storage tube 2, another liquid storage tube 2 keeps being dried no
Liquid, two liquid storage tubes is passed through the connection flexible pipe 5 on arm 21 and is connected, so that two liquid storage tubes 2 is interconnected, that is, complete experiment real
The preparation applied.
When experiment is carried out, testing liquid is slowly injected in dry liquid storage tube 2, so that the liquid in this liquid storage tube 2 was not had
Measurement tubule 3 and the space of this liquid storage tube 2 bottom, form the confined space of connection, continuation is slowly injected to be measured between two liquid storage tubes 2
Liquid, the fluid column in two measurement tubules 3 slowly rises, and is formed to fluid column and stops injection during the proper height being suitable to reading, finally
Replenished using glue head dropper, improve fluid column height reading accuracy, described horizontal mounting plate 11 is vertically provided with a pair with
The scale 13 that described measurement tubule 3 length is adapted, obtains the liquid-column height h of normal fluidMarkLiquid-column height with testing liquid
hTo be measured, thus the density of testing liquid can pass through simple ρTo be measured=hMarkxρMark/hTo be measuredFormula is calculated.
By the liquid storage tube 2 of used testing liquid part and its inner body integral replacing, that is, its arm 21 with
Connect flexible pipe 5 to disengage, vertically spacing fixation kit 4 of outwarding winding, after installing new liquid storage tube, the close of other liquid can be implemented at once
Degree measurement, conveniently carries out the measurement switching of different densities liquid.
Claims (9)
1. a kind of liquid density measurement device it is characterised in that：Including a pair of upper end open, there is arm（21）Liquid storage tube
（2）, a pair pass through located at described liquid storage tube（2）Upper end open on sealing-plug（23）And insert described liquid storage tube（2）Inner chamber
Measurement tubule（3）, connect described arm（21）Connection flexible pipe（5）, keep described liquid storage tube（2）That places straight up is perpendicular
Straight installing mechanism（1）；Described vertically-mounted mechanism（1）Including orthogonal horizontal mounting plate（11）And horizontal mounting plate
（12）, be fixedly arranged on described horizontal mounting plate for a pair（11）On vertically spacing fixation kit（4）.
2. a kind of liquid density measurement device according to claim 1 it is characterised in that：Described vertically spacing fixation kit
（4）Including with described horizontal mounting plate（11）Connected fixed block（41）, and described fixed block（41）Rotate the junction piece connecting
（42）；Described fixed block（41）It is provided with and described liquid storage tube（2）The first groove that tube wall is adapted（43）, rotating shaft（44）, institute
State junction piece（42）It is provided with and described liquid storage tube（2）The second groove that tube wall is adapted（45）, for and described rotating shaft（44）
Rotate the contiguous block connecting（46）.
3. a kind of liquid density measurement device according to claim 2 it is characterised in that：Described first groove（43）Located at
Described fixed block（41）Relatively described junction piece（42）The first composition surface（411）On, described second groove（45）Located at described
Junction piece（42）Relatively described fixed block（41）The second composition surface（421）On.
4. a kind of liquid density measurement device according to claim 3 it is characterised in that：Described vertically spacing fixation kit
（4）Also include for by described fixed block（41）With described junction piece（42）The locking member engaging and locking（47）；Described lock
Tight part（47）Including located at described first composition surface（411）The screwed hole of upper side（471）, located at described junction piece（42）On
With described screwed hole（471）The same side vertically cross described second composition surface（421）Elastic sliding part（48）, described joint
Block（42）It is provided with and described elastic sliding part（48）The ladder hole of coupling（422）.
5. a kind of liquid density measurement device according to claim 4 it is characterised in that：Described elastic sliding part（48）Bag
Include and described ladder hole（422）The cooperation of big interporal lacuna slide core（482）, externally protrude out in described junction piece（42）Knob
（483）, coaxially connected described slide core（482）With described knob（483）Diameter be less than described ladder hole（422）Aperture straight
The transition axis in footpath（484）, be coated at described transition axis（484）On and both ends of the surface respectively with described slide core（482）With described rank
Terraced through hole（422）Opposite end face against spring（485）.
6. a kind of liquid density measurement device according to claim 5 it is characterised in that：Described elastic sliding part（48）'s
Slide core side is intended for described screwed hole（471）, described slide core（482）End has and described screwed hole（471）Adaptable
Thread head（481）.
7. a kind of liquid density measurement device according to claim 2 it is characterised in that：Described first groove（43）Surface
With described second groove（45）Surface is covered with the thin pad of buffering（49）.
8. a kind of liquid density measurement device according to claim 1 it is characterised in that：Described liquid storage tube（2）Interior fixed
It is available for described measurement tubule（3）The guiding porous plate passing through（22）.
9. a kind of liquid density measurement device according to claim 1 it is characterised in that：Described horizontal mounting plate（11）On
Vertically it is provided with a pair and described measurement tubule（3）The scale that length is adapted（13）, described horizontal mounting plate（12）It is provided with
A pair and described liquid storage tube（2）The Auxiliary support pad that bottom shape is adapted（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904643.3U CN205958402U (en) | 2016-08-19 | 2016-08-19 | Liquid density measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904643.3U CN205958402U (en) | 2016-08-19 | 2016-08-19 | Liquid density measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958402U true CN205958402U (en) | 2017-02-15 |
Family
ID=57976420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620904643.3U Expired - Fee Related CN205958402U (en) | 2016-08-19 | 2016-08-19 | Liquid density measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414432A (en) * | 2022-01-24 | 2022-04-29 | 深圳国检计量测试技术有限公司 | Efficient calibration device and method for vibrating densimeter |
| CN114812735A (en) * | 2022-04-11 | 2022-07-29 | 扬州市检验检测中心 | Multifunctional liquid level meter |
-
2016
- 2016-08-19 CN CN201620904643.3U patent/CN205958402U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414432A (en) * | 2022-01-24 | 2022-04-29 | 深圳国检计量测试技术有限公司 | Efficient calibration device and method for vibrating densimeter |
| CN114812735A (en) * | 2022-04-11 | 2022-07-29 | 扬州市检验检测中心 | Multifunctional liquid level meter |
| CN114812735B (en) * | 2022-04-11 | 2023-01-20 | 扬州市检验检测中心 | Multifunctional liquid level meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170819 |