CN201384885Y - Bottom control type specimen filter container - Google Patents

Abstract

The utility model relates to a bottom control type specimen filter container, which is formed by a seal cover, a cup cover, a cup body, an upper piston, a piston rod, a lower piston, a clutch spring, a bottom cover, a drainage needle, a washer and a filtering membrane; the piston rod is arranged in a middle hole at the bottom of the cup body; the upper piston is tightly sleeved at the upper end of the piston rod; the lower piston is tightly sleeved at the upper end of the drainage needle; the filter membrane, the washer and the drainage needle are sequentially arranged at the lower end of the piston rod, and are in threaded connection with and fixed at the lower end of the piston rod; and one end of the clutch spring is embedded into the bottom of the cup body, and the other end of the clutch spring is connected with a drainage needle flange. The utility model has the advantages of sanitation, good sealing property and capability of graded filtration for liquid in a container as required.

Description

Bottom control type sample filtering container

Technical field

The utility model relates to a kind of filter, is meant a kind of bottom control type sample filtering container specifically.

Background technology

In fields such as medical test, Bioexperiment, need filtering container that getting liquid sample such as ight soil, urine, river etc. are filtered.Existing filtering container is such as " disposable feces concentrate container " (as Fig. 1, Fig. 2).As Fig. 1, take manually to remove container top lock 1 back and manually stab and open container inner bottom part center hole and make liquid be downward through the bottom screen pack; Or as Fig. 2, in the container side utilization mode that pulls flame-arrester vent plug 2 is drawn back, centre bore is opened allowed liquid flow down.Its shortcoming is: can only manually control by top lock or side flame-arrester vent plug, and can only open and can not close, can not the controlled filter amount, and all liq in can only the intact container of disposable filtering.

The utility model content

The bottom control type sample filtering container that the utility model provides the liquid in a kind of container can gradation to filter.

The utility model adopts following technical scheme: bottom control type sample filtering container, constitute by capping, bowl cover, cup, the cup end, upper piston, piston rod, bottom, drainage needle, clutch spring, lower piston, filter membrane, upper piston tightly is enclosed within the piston rod upper end, filter membrane tightly is enclosed within on the piston rod, lower piston tightly is enclosed within the drainage needle upper end, drainage needle is fixed on piston-rod lower end by being threaded, at the bottom of clutch spring one end is embedded in glass in, the other end links to each other with the drainage needle flange.

Cup is provided with at least two fixing holes at the end, by this fixing hole, container can be fixed on the machine with spinfunction and do high speed rotary motion, realizes machine automation control.

The solution that during use needs the is filtered filtering container of packing into need not airtight not seal cap.If solid sample (as stool sample) needs close dissolving to filter, it is put into seal cap behind the container, sting the soft hole of reservation in the middle of the capping with the device of syringe-like, the liquid injecting container of dissolved solid sample.Then bottom is taken off, test tube or other receiving vessels are placed into below the drainage needle, the promotion drainage needle moves up, drainage needle compression clutch spring promotes piston rod drive upper piston, lower piston moves up, in the container sample by cup at the bottom of the gap of upper surface and upper piston lower surface flow down, flow on the filter membrane and filter, flow out by drainage needle at last.When stopping, unclamping drainage needle, the clutch spring is return original position with drainage needle, and upper piston blocks up the gap, has promptly controlled sample and has outwards flowed out.This use is novel to have health, closure is good, and the liquid in the container is the gradation advantage of filtering as required.

Description of drawings

Fig. 1, Fig. 2 are existing disposable feces concentrate container structural representation.

Fig. 3 is the utility model schematic appearance.

Fig. 4 is the utility model structural representation.

Fig. 5 is the utility model cup schematic appearance.

The specific embodiment

Describe the specific embodiment of the present utility model in detail below with reference to Fig. 3, Fig. 4, Fig. 5.

Bottom control type sample filtering container, by capping 1, bowl cover 2, cup 3, upper piston 4, piston rod 5, lower piston 6, clutch spring 7, bottom 8, drainage needle 9, packing ring 10, filter membrane 11 constitutes, piston rod 5 places in the interstitial hole 12 of bottom of cup, upper piston 4 tightly is enclosed within piston rod 5 upper ends, lower piston 6 tightly is enclosed within drainage needle 9 upper ends, filter membrane 11, packing ring 10, drainage needle 9 comes piston rod 5 lower ends successively, and be threaded by drainage needle 9 and be fixed in piston rod 5 lower ends, clutch spring 7 one ends are embedded in the bottom of cup 13, and the other end links to each other with drainage needle flange 14.

Three fixing holes 16 are set on the cup end 15,, container can be fixed on the machine with spinfunction and do high speed rotary motion, realize machine automation control by this fixing hole 16.

The solution that during use needs the is filtered filtering container of packing into need not airtight not seal cap 1.If solid sample (as stool sample) needs close dissolving to filter, put into seal cap 1 behind the container, sting the soft hole of reservation in the middle of the capping 1 with the device of syringe-like, the liquid injecting container of dissolved solid sample.Then bottom 8 is taken off, test tube or other receiving vessels are placed into below the drainage needle 9, promoting drainage needle 9 moves up, drainage needle 9 compression clutch springs 7 promote piston rod 5 drive upper pistons 4, lower piston 6 moves up, sample flows down by the gap of bottom of cup 13 upper surfaces and upper piston 4 lower surfaces in the container, flow on the filter membrane 11 and filter, flow out by drainage needle 9 at last.When stopping, unclamping drainage needle 9, clutch spring 7 is return original position with drainage needle 9, and upper piston 4 blocks up the gap, has promptly controlled sample and has outwards flowed out.This use is novel to have health, closure is good, and the liquid in the container is the gradation advantage of filtering as required.

Above-mentioned is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection domain.

Claims (2)

1, bottom control type sample filtering container, it is characterized in that: constitute by capping, bowl cover, cup, upper piston, piston rod, lower piston, clutch spring, bottom, drainage needle, packing ring, filter membrane, piston rod places in the interstitial hole of bottom of cup, upper piston tightly is enclosed within the piston rod upper end, lower piston tightly is enclosed within the drainage needle upper end, filter membrane, packing ring, drainage needle come piston-rod lower end successively, and be threaded by drainage needle and be fixed on piston-rod lower end, clutch spring one end is embedded in the bottom of cup, and the other end links to each other with the drainage needle flange.

2, bottom control type sample filtering container as claimed in claim 1 is characterized in that: at least two fixing holes are set on the cup end.

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