CN208912112U - Quantitative liquid separating device - Google Patents

Abstract

The quantitative liquid separating device of the utility model, the tube body including carrying liquid collecting cavity are provided with pedestal in tube body upper end, are connected with inlet tube by feed liquor pipe fitting in tube body lower part, inlet tube another end is connected by plug with the container of loaded reagent；It is installed with feed liquor check valve and out liquid check valve respectively in liquid collecting cavity two sides of the bottom, the inlet and inlet tube fittings of feed liquor check valve, the liquid outlet of liquid check valve is connected with out liquid hose out, and the liquid outlet of liquid hose is arranged on pedestal out；Piston moving up and down is provided in liquid collecting cavity, piston is linked by compression bar with the pressure cap being arranged in above tube body, is provided with reset spring outside the compression bar between pressure cap and tube body；The pedestal rear end face offers sliding slot, and the pressure cap front end setting can the sliding block that moves up and down of smooth slot.Quantitative liquid separating apparatus structure is simple, easy to operate, hand-holdable, substantially increases liquid separation efficiency, is effectively saved the time；And its controllable liquid separation amount, it is required when meeting experiment.

Description

Quantitative liquid separating device

Technical field

The quantitative liquid separating device of the utility model belongs to experiment appliance field.

Background technique

Liquid-transfering gun is one kind of pipettor, is usually used in that laboratory is a small amount of or micro liquid pipettes, specification is different, difference rule The liquid-transfering gun of lattice matches different size of pipette tips, and the shape of different manufacturer's productions is also slightly different, but working principle And operating method is almost the same.Liquid-transfering gun category precision instrument uses and is intended to careful when storing, prevents from damaging, avoid shadow Ring its range.The imbibition range of these micro sample adding appliances makes between 1-1000 microlitres suitable for routine clinical chemical laboratory With.Its physics principle being loaded has following two: being loaded using piston stroke, and added using the piston without mattress is just mobile Sample.

The pipettor of the prior art when in use, is difficult accurately to hold the amount of reagent, influences the effect of liquid relief.And it is existing Dispenser need to be fixed when in use, operate it is relatively complicated.

Summary of the invention

The purpose of this utility model is that proposition is hand-holdable, and can quantitative liquid-discharging quantitative liquid separating device.

Purpose of the utility model is realized as follows: quantitative liquid separating device includes the tube body for carrying liquid collecting cavity, in pipe Body upper end is provided with pedestal, and the tube body upper port at non-pedestal is open；Feed liquor is connected with by feed liquor pipe fitting in tube body lower part Pipe, inlet tube another end are connected by plug with the container of loaded reagent；It is unidirectional that it is installed with feed liquor respectively in liquid collecting cavity two sides of the bottom Valve and out liquid check valve, the inlet and inlet tube fittings of feed liquor check valve, the liquid outlet of liquid check valve is connected with out out Liquid hose, the liquid outlet of liquid hose is arranged on pedestal out；Piston moving up and down is provided in liquid collecting cavity, piston passes through Compression bar links with the pressure cap being arranged in above tube body, is provided with reset spring outside the compression bar between pressure cap and tube body；The seat Body rear end face offers sliding slot, the pressure cap front end setting can the sliding block that moves up and down of smooth slot, portrayed on pedestal rear end face There is graduation mark.

Further, non-closed annular outer cover is provided in pressure cap bottom, outer cover insertion tube body simultaneously connects with inboard wall of tube body Touching.

Further, external cover of being present is buckled with sealing cover；The sealing cover be semi-closed structure cavity body, before, under End face is open, is provided with liquid inlet head on the inner wall of end face behind, is provided with liqiud outlet head on sealing cover upper surface, liquid inlet head with go out Liquid head is connected to by the runner being provided in sealing cover.

Due to carrying out above-mentioned technical proposal, it is simple to allow for quantitative liquid separating apparatus structure, easy to operate, hand-holdable, significantly Liquid separation efficiency is improved, the time is effectively saved；And its controllable liquid separation amount, it is required when meeting experiment.Outer cover and sliding slot Setting can ensure that pressure cap smoothly moves up and down, and then ensure steady movement of the piston in liquid collecting cavity, be conducive to liquid separation The determination of amount.

Detailed description of the invention

The specific structure of the utility model is provided by drawings and examples below:

Fig. 1 is the structural schematic diagram of the application；

Fig. 2 is the attachment structure schematic diagram of pedestal and gland；

Fig. 3 is the sealing cover structure schematic diagram that can be installed additional；

Fig. 4 is sealing cover schematic diagram of internal structure.

Legend: 1, liquid outlet, 2, go out liquid hose, 3, go out liquid check valve, 4, liquid collecting cavity, 5, feed liquor check valve, 6, inlet tube Connector, 7, inlet tube, 8, plug plug division, 9, header body, 10, intubation, 11, compression bar, 12, pressure cap, 12-1, sliding block, 12-2, Outer cover, 13, pedestal, 13-1, sliding slot, 14, piston, 15, tube body, 16, graduation mark, 17, sealer, 18, sealing cover, 18-1, card Rib, 18-2, cavity, 18-3, liquid inlet head, 18-4, runner, 18-5, liqiud outlet head.

Specific embodiment

The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions Determine specific embodiment.

Embodiment 1: as shown in Fig. 1 to 2, quantitative liquid separating device includes the tube body 15 for carrying liquid collecting cavity 4, on tube body 15 End is provided with pedestal 13, and 15 upper port of tube body at non-pedestal 13 is open；It is connected in 15 lower part of tube body by feed liquor pipe fitting 6 Inlet tube 7,7 another end of inlet tube are connected by plug with the container of loaded reagent；4 two sides of the bottom of liquid collecting cavity be installed with respectively into The inlet of liquid check valve 5 and out liquid check valve 3, feed liquor check valve 5 is connected to feed liquor pipe fitting 6, out the liquid out of liquid check valve 3 Mouth is connected with out liquid hose 2, and the liquid outlet 1 of liquid hose 2 is arranged on pedestal 13 out, is provided on the pedestal 13 of ring liquid outlet 1 Sealing ring 17；Piston 14 moving up and down is provided in liquid collecting cavity 4, piston 14 is by compression bar 11 and is arranged on tube body 15 The pressure cap 12 of side links, and is provided with reset spring outside the compression bar 11 between pressure cap 12 and tube body 15；13 rear end face of pedestal Offer sliding slot 13-1,12 front end of the pressure cap setting can the sliding block 12-1 that moves up and down of smooth slot 13-1, in 13 rear end of pedestal Graduation mark 16 has been portrayed on face.

The plug includes header body 9,9 lower end of header body is provided with plug plug division 8, in header body 9 End is provided with intubation 10, and intubation 10 is for being inserted into the container of loaded reagent, and plug plug division 8 with inlet tube 7 for being connected to.

As shown in Fig. 2, being provided with non-closed annular in 12 bottom of pressure cap to ensure the stability when pressing pressure cap 12 Outer cover 12-2, outer cover 12-2 insertion tube body 15 are simultaneously contacted with 15 inner wall of tube body；It is provided on outer cover 12-2 outer wall several vertical Lug, nib is laid, by the contact of lug, nib and 15 inner wall of tube body, whole contact area is reduced, reduces friction, be conducive to pressure cap 12 It presses down on.

The 12 front end face width of pressure cap is less than 13 rear end face width of pedestal, thus reserves in 13 rear end face two sides of pedestal The blank face of one fixed width, thus to make allowances with the clamping of sealing cover 18 later.

The quantitative liquid separating device of the utility model, it is when in use, then anti-first by the reservoir of plug and loaded reagent Pressure cap 12 is pressed again, until there is liquid to flow out from the outlet end mouth of liquid hose 2 out, is indicated at this time in liquid collecting cavity 4, inlet tube 7 Reagent is had been filled in liquid hose 2 out；Pressure cap 12 is then unclamped, after the reset of pressure cap 12, downward slowly pressing pressure cap 12, at this time The reagent that outlet end mouth by going out liquid hose 2 flows out is passed into disuse；After edge is overlapped with the zero graduation of graduation mark 16 on pressure cap 12, The application is moved at container port to be used, pressure cap 12 is persistently pressed down on, the reagent shifted is judged according to graduation mark 16 Amount after arrival needs scale, unclamps pressure cap 12 and completes reagent quantitative liquid separation.The delimitation of graduation mark 16 and the cross section of liquid collecting cavity 4 Product is related, and the specific non-the present application point of ratio is not described in detail herein.

After liquid separation, plug and the container for being mounted with cleaning solution need to be attached, and by pressing pressure cap 12 repeatedly To liquid collecting cavity 4, inlet tube 7 and out liquid hose 2 is rinsed, finally with clear water repeated flushing again.

Embodiment 2: as shown in Figure 3,4, carrying out liquid separation to harmful liquid, when liquid is easy the liquid out by going out liquid hose 2 When overflowing at port, sealing cover 18 can be buckled in 13 outer cover of pedestal at this time；The sealing cover 18 is the cavity body of semi-closed structure, Before it, lower end surface it is open, be provided with liquid inlet head 18-3 on the inner wall of end face behind, be provided with out liquid on 18 upper surface of sealing cover Head 18-5, liquid inlet head 18-3 and liqiud outlet head 18-5 are connected to by the runner 18-4 being provided in sealing cover 18.

Inwardly projecting card rib 18-1 is provided in the front end face open end two sides of sealing cover 18, it can be with by card rib 18-1 13 rear end face two sides of pedestal are clamped, so that sealing cover 18 is fixed on pedestal 13.Liquid inlet head 18-3 and liquid outlet 1 at this time Docking, sealing ring 17 ensure that liquid will not be flowed out by docking site.

The quantitative liquid separating apparatus structure of the utility model is simple, easy to operate, hand-holdable, substantially increases liquid separation efficiency, It is effectively saved the time；And its controllable liquid separation amount, it is required when meeting experiment.

Above description is merely examples for clearly illustrating the present invention, and is not to the utility model The restriction of embodiment.All the technical solution of the utility model changes and variations that derived from that belong to still are located In the column of the protection scope of the utility model.

Claims (6)

1. a kind of quantitative liquid separating device, it is characterised in that: the tube body including carrying liquid collecting cavity is provided with seat in tube body upper end Body, the tube body upper port at non-pedestal are open；Inlet tube is connected with by feed liquor pipe fitting in tube body lower part, inlet tube another end is logical Plug is crossed to be connected with the container of loaded reagent；It is installed with feed liquor check valve and out liquid check valve respectively in liquid collecting cavity two sides of the bottom, The inlet and inlet tube fittings of feed liquor check valve, the liquid outlet of liquid check valve is connected with out liquid hose out, out liquid hose Liquid outlet be arranged on pedestal, be provided with sealing ring on the pedestal of ring liquid outlet；Being provided in liquid collecting cavity can move up and down Piston, piston linked by compression bar and the pressure cap that is arranged in above tube body, is provided with outside the compression bar between pressure cap and tube body Reset spring；The pedestal rear end face offers sliding slot, the pressure cap front end setting can the sliding block that moves up and down of smooth slot, be present Graduation mark has been portrayed on body rear end face.

2. quantitative liquid separating device as described in claim 1, it is characterised in that: the plug includes header body, in plug sheet Body lower end is provided with plug plug division, and header body upper end is provided with intubation, is intubated the container for being inserted into loaded reagent, inserts Head plug division with inlet tube for being connected to.

3. quantitative liquid separating device as described in claim 1, it is characterised in that: it is outer that pressure cap bottom is provided with non-closed annular Cover, outer cover insertion tube body are simultaneously contacted with inboard wall of tube body；Several vertical laying lug, nibs are provided on casing outer wall.

4. quantitative liquid separating device as claimed in claim 3, it is characterised in that: the pressure cap front end face width is less than pedestal rear end Face width.

5. quantitative liquid separating device as described in claim 1, it is characterised in that: present external cover is buckled with sealing cover；The sealing Lid is the cavity body of semi-closed structure, before, lower end surface it is open, liquid inlet head is provided on the inner wall of end face behind, in sealing cover Liqiud outlet head is provided on upper surface, liquid inlet head is connected to liqiud outlet head by the runner being provided in sealing cover.

6. quantitative liquid separating device as claimed in claim 5, it is characterised in that: be arranged in the front end face open end two sides of sealing cover There is inside card rib outstanding, can be clamped with pedestal rear end face two sides by card rib, so that sealing cover is fixed on pedestal.