CN206974789U - Constant volume charger - Google Patents
Constant volume charger Download PDFInfo
- Publication number
- CN206974789U CN206974789U CN201720605384.9U CN201720605384U CN206974789U CN 206974789 U CN206974789 U CN 206974789U CN 201720605384 U CN201720605384 U CN 201720605384U CN 206974789 U CN206974789 U CN 206974789U
- Authority
- CN
- China
- Prior art keywords
- housing
- flow control
- expansion link
- water inlet
- constant volume
- 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
- Measuring Volume Flow (AREA)
Abstract
A kind of constant volume charger, including housing, the housing is hollow structure inside, the housing upper and lower ends are provided with corresponding water inlet and delivery port, the water inlet side is provided with the expansion link for stretching into enclosure interior and lower end is connected with housing, it is provided with the middle part of the expansion link close to the side of water inlet and is secured to connect flow control head, it is raised that the first side of flow control is provided with first, the inner walls of the first side of flow control are provided with the baffle plate for being secured to connection, it is raised that the baffle plate is provided with second be engaged when expansion link is retracted with the first projection close to the side of flow control head.The enclosure interior is provided with the flexible pipe for connecting water inlet and delivery port respectively, space of the flexible pipe through the first projection and the second projection.Spring is provided between the expansion link lower end and housing bottom.The utility model is simple in construction, just can easily control solution flow rate by one-handed performance, greatly improve the degree of accuracy of constant volume, alleviate the working strength for the personnel of testing.
Description
Technical field
Volume fixing device technical field is the utility model is related to, more particularly to a kind of constant volume charger.
Background technology
In pedotheque detection process, it is to carry out constant volume to the solution after the completion of resolution to have a step, for example has been cleared up
Digestion solution is transferred to 100ml volumetric flasks into rear, it is to be measured then with ultra-pure water constant volume to 100ml.In this constant volume process,
Ultra-pure water is introduced volumetric flask by existing method typically by plastic pipe, and control plastic pipe flow velocity is agrafe, by using hand
Finger pressure agrafe, control agrafe clamp the dynamics of plastic pipe, so as to control the flow velocity of ultra-pure water, are finally reached the mesh of constant volume
's.
And the hand strength of the process of this constant volume, very test experimenter, because the dynamics of agrafe is difficult to accurately control,
Actually so that the degree of accuracy of constant volume substantially reduces, the working strength of experimenter is further increased.
Utility model content
The purpose of this utility model is to propose a kind of volume fixing device simple in construction, easy to operation.
A kind of constant volume charger, including housing, the housing are hollow structure inside, and the housing upper and lower ends are provided with phase
Corresponding water inlet and delivery port, the water inlet side, which is provided with, stretches into enclosure interior and expansion link that lower end is connected with housing,
It is provided with the middle part of the expansion link close to the side of water inlet and is secured to connect flow control head, the first side of flow control is set
There is the first projection, the inner walls of the first side of flow control are provided with the baffle plate for being secured to connection, and the baffle plate is close
It is raised that the side of flow control head is provided with second be engaged when expansion link is retracted with the first projection.
Preferably, the enclosure interior is provided with the flexible pipe for connecting water inlet and delivery port respectively, and the flexible pipe passes through first
Space between raised and the second projection.
Preferably, spring is provided between the expansion link lower end and housing bottom.
Compared with prior art, the utility model has the advantage of：
1., power need not be additionally provided, use the pressure differential can of singlehanded control and water in itself to realize operation.
2., housing meet ergonomic designs, hold it is comfortable, it is difficult for drop-off, it is easy to use.
3., the projection on baffle plate and flow control head designed using special camber line, it is possible to achieve water flow velocity is from zero to complete
The accurate control of whole process of speed, easily realizes accurate constant volume.
4., built-in flexible pipe can change, extend whole service life.
Brief description of the drawings
Fig. 1 is the structural representation of constant volume charger dormant state described in the utility model；
Fig. 2 is the structural representation of constant volume charger working condition described in the utility model.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail.
As shown in figure 1, a kind of constant volume charger, including housing 1, the housing 1 is hollow structure inside, on the housing
Lower both ends are provided with corresponding water inlet 3 and delivery port 8, and the side of water inlet 3, which is provided with, stretches into the inside of housing 1 and lower end and shell
The connected expansion link 2 of body 1, the middle part of expansion link 2 is provided with close to the side of water inlet 3 to be secured to connect flow control first 6,
The first side of flow control is provided with the first projection 61, and the inwall of housing 1 of first 6 side of flow control, which is provided with, to be secured to
The baffle plate 5 of connection, the baffle plate 5 is provided with close to the side of flow control first 6 to match when expansion link 2 is retracted with the first projection 61
The second projection 51 closed.
The inside of housing 1 is provided with the flexible pipe 4 for connecting water inlet 3 and delivery port 8 respectively, and the flexible pipe 4 is convex through first
Play 61 and the second space between projection 51.
Spring 7 is provided between the lower end of expansion link 1 and the bottom of housing 1.
When the charger is stood by, it is in and closes due to the active force of spring, between flow control head and baffle plate
Conjunction state, the flexible pipe being now placed between flow control head and baffle plate is squeezed so that solution will not flow out.
During work, a hand holds charger, and thumb is pinned expansion link upper end and pressed down, under the expansion link compression spring
Move, the position of flow control head also moves down therewith so that the space between flow control head and baffle plate becomes big.When flow control head
During positioned at extreme lower position, the flexible pipe is in decontrols state completely so that solution is flowed out with maximal rate.When need reduce flow velocity
When, by thumb slowly up lifting, expansion link also rises therewith under the force of a spring, now flow control head and baffle plate it
Between space slowly diminish, extrude central flexible pipe so that solution flow rate slowly reduces.
Compared with prior art, the utility model has the advantage of：
1., power need not be additionally provided, use the pressure differential can of singlehanded control and water in itself to realize operation.
2., housing meet ergonomic designs, hold it is comfortable, it is difficult for drop-off, it is easy to use.
3., the projection on baffle plate and flow control head designed using special camber line, it is possible to achieve water flow velocity is from zero to complete
The accurate control of whole process of speed, easily realizes accurate constant volume.
4., built-in flexible pipe can change, extend whole service life.
Preferred embodiments of the present utility model are the foregoing is only, it is all new in this practicality not to limit the utility model
Within the spirit and principle of type, any modification, equivalent substitution and improvements made etc., protection model of the present utility model is all contained in
Within enclosing.
Claims (3)
1. a kind of constant volume charger, including housing (1), it is characterised in that：The housing (1) is hollow structure inside, the shell
Body upper and lower ends are provided with corresponding water inlet (3) and delivery port (8), and water inlet (3) side, which is provided with, to be stretched into housing (1)
The expansion link (2) that portion and lower end are connected with housing (1), expansion link (2) middle part is provided with close to the side of water inlet (3) and it
Flow control head (6) is fixedly connected with, the first side of flow control is provided with first raised (61), the flow control head (6) one
Housing (1) inwall of side is provided with the baffle plate (5) for being secured to connection, and the baffle plate (5) is close to the side of flow control head (6)
Provided with second raised (51) being engaged when expansion link (2) is retracted with first raised (61).
2. constant volume charger according to claim 1, it is characterised in that：Be provided with inside the housing (1) connect respectively into
The mouth of a river (3) and the flexible pipe (4) of delivery port (8), sky of the flexible pipe (4) through first raised (61) and second raised (51)
Gap.
3. constant volume charger according to claim 1, it is characterised in that：Expansion link (2) lower end and housing (1) bottom
Between be provided with spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720605384.9U CN206974789U (en) | 2017-05-27 | 2017-05-27 | Constant volume charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720605384.9U CN206974789U (en) | 2017-05-27 | 2017-05-27 | Constant volume charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206974789U true CN206974789U (en) | 2018-02-06 |
Family
ID=61409386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720605384.9U Active CN206974789U (en) | 2017-05-27 | 2017-05-27 | Constant volume charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206974789U (en) |
-
2017
- 2017-05-27 CN CN201720605384.9U patent/CN206974789U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203453007U (en) | Self-air-inlet type air cylinder and air compressor with same | |
| CN206974789U (en) | Constant volume charger | |
| CN206258451U (en) | A kind of hand-held water quality sampler | |
| CN203544624U (en) | Built-in control device for hopper discharging flow | |
| CN207666871U (en) | A kind of adjustable imbibition dropper of uptake | |
| CN208449346U (en) | A kind of convenient pipette | |
| CN217732730U (en) | Adsorption equipment for aquatic organic component | |
| CN106277696A (en) | Three cell structure lab scale filter pressing analog | |
| CN206284890U (en) | Coffee machine water route constant-current constant-pressure valve | |
| CN207832513U (en) | A kind of quantitative sample injector | |
| CN108155338B (en) | Liquid pumping mechanism | |
| CN205920100U (en) | Multi -functional buret | |
| CN202935324U (en) | Portable bicycle air-charging device | |
| CN207351514U (en) | Liquid level measurer | |
| CN211216728U (en) | Novel ear washing ball | |
| CN214969704U (en) | Portable negative pressure drainage device | |
| CN208642698U (en) | A kind of pipettor | |
| CN217424850U (en) | Negative pressure sampler of convenient operation | |
| CN209490036U (en) | A kind of endocrine hydrops draw-out device | |
| CN208407036U (en) | Fluid aspirator for pipette | |
| CN204841733U (en) | A novel test tube instrument for medicine inspection | |
| CN210932976U (en) | Negative pressure drainage device for stomach tube | |
| CN220803331U (en) | Continuous sample adding device | |
| CN213516140U (en) | Movable pore water pressure tester with stable guide | |
| CN204188039U (en) | A kind of heat exchanging water storage tank fast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |