A kind of water quality bacteria sampler
Technical field
The present invention relates to environmental monitoring sample devices technical field, refer in particular to a kind of bacteria sampler that is applied in environmental water quality monitoring.
Background technology
In environmental water quality monitoring, the requirement of water quality bacteria project sampling is: 1. sample bottle must pass through sterilization treatment, can use vial or plastic bottle, generally uses the wide-mouth vial, because adopt the high-temperature sterilization method usually in the environmental monitoring field; 2. on-the-spot in monitoring, prevent that bottle cap and bottle inside from receiving bacterial contamination; 3. sampling bottle can not use on-the-spot water sample to clean.The the 1st, the 3 two above-mentioned requirement accomplished easily, and in order to satisfy the 2nd requirement, current way is hand-held sampling bottle, opens bottle cap in the underwater.But when the depth of water surpasses 1 meter, need to gather the deep layer water sample, can't implement.Once the someone designed the deep water bacteria sampler, and its structure is a stainless steel frame, and sampling bottle is placed wherein, but was fixed with special-purpose bottle cap on the sampling thief, and a lever construction capable of using draws back bottle cap.Cause two problems like this:
1. when sampling bottle being installed, the bottle cap on the bottle must be retained on the bank, possibly cause polluting;
2. special-purpose bottle cap and sampling thief are whole to be connected, and special-purpose bottle cap can't be sterilized, and when covering sampling bottle, causes pollution, and when fetching water sample and changing original bottle cap, can not avoid that bacterium falls into sampling bottle in the air.
Summary of the invention
The present invention will solve existing water quality sampling bottle to be prone to contaminated problem, propose a kind of simple and reasonable, cost is cheap, easy to operate, and can avoid the water quality bacteria sampler of sampling and staiing.
For solveing the technical problem, the water quality bacteria sampler that the present invention proposes, it comprises the bendable body frame of an end opening, the dual-side of body frame is provided with elongated slot and has a through hole on the end edge strip; The body frame dual-side is provided with can be along its mobile or fixed tressel, and the tressel middle part has the limiting holes that is used to compress the sampling bottle shoulder; The openend of body frame dual-side is provided with can be along the mobile or fixed tube-like base of dual-side, and base inside is provided with support, and support is provided with weight; The through hole of one steel wire penetrating body frame, outer kink one sleeve pipe of this wire rope, an end and the body frame of sleeve pipe are fixed; An end that passes the wire rope of through hole connects a chuck, and this chuck is provided with the edge that can tighten the employing bottle cap towards the one side of said tressel.
Wherein: the elongated slot of said body frame dual-side can be an elongated slot, also can be two elongated slots that separate.
Said tressel can be tabular, and its two ends are provided with the bending edges that cooperates with the body frame dual-side, and a screw passes this bending edges and with described elongated slot tressel is connected with the dual-side of body frame.
The wall body on said base top cooperates with the body frame dual-side, and the wall body that a screw passes base is connected base with described elongated slot with the dual-side of body frame, and described support is to be the fin that radially extends to the center by the internal face of base.
Described chuck is circular, and described wire rope is connected with the center of chuck, and described edge can be annular, is provided with the dogging screw around this edge, and the front end dogging of dogging screw is lived the bottle cap of sampling bottle.
Described chuck is circular, and described wire rope is connected with the center of chuck, and described edge also can be for being uniformly distributed with the claw that is provided with at interval, and the outer peripheral face of this claw is provided with the dogging screw, and the front end dogging of dogging screw lives to adopt the bottle cap of bottle.
Described body frame, tressel, base, support, screw is made by stainless steel material, and described weight has been done antirust surface treatment.
Described sleeve pipe, the cap of chuck and dogging screw is made by plastic material.
The present invention assembling comprises that to the underwater water quality of deep water position samples through the sampling bottle of sterilization treatment, and sampling bottle need not opened bottle cap before dropping in the water, only needs the chuck dogging is lived the bottle cap of sampling bottle; Sampling bottle drops into when arriving the predetermined degree of depth under water in the water, catches sleeve pipe to lift the present invention on the other hand, and another pulls the free end of moving wire rope; Through chuck bottle cap is unpluged, the free end of wire rope is unclamped in the sampling of can uncapping under water then; Under gravity and hydraulic action; Capped is fetched water sample voluntarily, and whole process does not receive other pollution.Because tressel can move up and down, the present invention can hold the sampling bottle of multiple volume, adapts to the volume requirement of different quality sampling.Sleeve pipe is marked with the scale sign, the depth localization of water during convenient the sampling.River or trend were to the skew of depth localization when the weight that disposes on the base can prevent the deep layer sampling.The present invention can satisfy 3 requirements of water quality bacteria sampling fully.The present invention is simple and reasonable, and cost is cheap, and is easy to operate, can avoid sampling to stain, and guaranteed the representativeness and the comparability of institute's sample thief.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is made detailed explanation, wherein:
Fig. 1 is the structural representation of preferred embodiment of the present invention;
Fig. 2 a, Fig. 2 b and Fig. 2 c are respectively front view, vertical view and the right view of body frame among Fig. 1;
Fig. 3 a, Fig. 3 b and Fig. 3 c are respectively front view, upward view and the right view of tressel among Fig. 1;
Fig. 4 a and Fig. 4 b are respectively front view, the vertical view of base among Fig. 1;
Fig. 5 a and Fig. 5 b are respectively front view, the upward view of chuck among Fig. 1;
Fig. 6 a and Fig. 6 b are the synoptic diagram of different volumes sampling bottle.
Embodiment
Fig. 1 shows the basic structure that sampling bottle has been installed in preferred embodiment of the present invention; Described water quality bacteria sampler; Please combine Fig. 2 a, Fig. 2 b and Fig. 2 c; It comprises the bendable body frame 1 of an end opening, and the dual-side of body frame is axially arranged with the elongated slot 20 at two intervals along it, and this elongated slot also can be set to an elongated slot.And have a through hole 21 on the edge strip of body frame one end (upper end).Body frame 1 dual-side middle part is provided with can be along mobile or fixed flat tressel 2; Please combine Fig. 3 a, Fig. 3 b and Fig. 3 c; The tressel middle part has and is used to compress the limiting holes 22 that adopts bottle 13 shoulders; Its two ends are provided with bending edges 23, one screws that cooperate with the body frame dual-side and pass this bending edges 23 and with described elongated slot 20 dual-side of tressel 2 with body frame 1 is connected.Present embodiment adopts socket head cap screw 6 outwards to pass the elongated slot 20 of body frame 1 side by the medial surface of bending edges 23, is connected with a wing nut 7.Also can adopt being threaded of other as required, be connected as adopting self-tapping screw and bending edges 23.Sampling bottle (shown in Fig. 6 a and Fig. 6 b) for different volumes can make tressel 2 move along the dual-side of body frame 1 earlier, compress the shoulder of sampling bottle after, be screwed again.Please combine Fig. 4 a and Fig. 4 b; The openend (lower end) of body frame 1 dual-side is provided with can be along the mobile or fixed tube-like base 3 of dual-side; The wall body that is base 3 tops cooperates with the body frame dual-side, and the wall body that a screw passes base 3 is connected the dual-side of base with body frame 1 with described elongated slot 20.Base inside is provided with a support 24, and support is provided with weight 4.In the present embodiment, support 24 is to be three fins that radially extend by the internal face of base to the center, and this fin level is uniformly distributed with; Screw is welded in the interior survey face of base 3 and outwards passes the elongated slot 20 of body frame 1 side, be connected with a wing nut 7.Also can adopt being threaded of other as required, be connected as adopting self-tapping screw and base wall body.One wire rope 10 passes the through hole 21 of body frame upper end edge strip, and the outer kink one of this wire rope is axially arranged with the sleeve pipe 9 of scale sign along it, and an end of sleeve pipe is fixed through casing joint 8 and body frame upper end edge strip.An end that passes the wire rope 10 of through hole 21 connects a chuck 5, and this chuck is provided with the edge 26 that can tighten sampling bottle 13 bottle caps 25 towards the one side of tressel 2.Please combine Fig. 5 a and Fig. 5 b; In the present embodiment; Chuck 5 is circular, and wire rope 10 is connected with the center of chuck upper surface through a socket head cap screw 12, and edge 26 is for being uniformly distributed with three claws that are provided with at interval; The outer peripheral face of this claw radially is provided with dogging screw 11, and the front end dogging of dogging screw lives to adopt the bottle cap 25 of bottle 13.Chuck also can be other shapes as required, as long as edge 26 can cutting ferrule be lived the bottle cap 25 of sampling bottle 13.As, edge 26 is continuous loop configuration, is provided with dogging screw 11 around this edge, the front end dogging of dogging screw is lived the bottle cap 25 of sampling bottle 13.Present embodiment, body frame 1, tressel 2, base 3, support 24 and screw all can be made by the sand streak stainless steel material, and weight 4 can be made by stainless steel, also can be made by common iron, but antirust processing should be done in its surface.The cap of chuck 5 and dogging screw 11 is made by resilient material, as making with plastic material, so that bottle 13 and bottle cap 25 are adopted in protection.Sleeve pipe 9 suggestions adopt the better rigidity plastic cement to make.
Please refer to Fig. 1, when the present invention uses, earlier base 3 and body frame 1 are connected through screw retention; To be placed on through the sampling bottle 13 of sterilization treatment on the weight 4 again; Move tressel 2 then, make its limiting holes 22 be enclosed within on the shoulder and compress sampling bottle, again with screw- nut 6,7 fixed connections.The sampling bottle of sealing is fixed in the present invention like this.At last edge 26 cutting ferrules of chuck 5 are lived the bottle cap 25 of sampling bottle 13, and the dogging screw 11 of screwing makes its front end dogging live the bottle cap 25 of sampling bottle 13.Sampling bottle need not opened bottle cap before dropping in the water, and sampling bottle drops into when arriving the predetermined degree of depth under water in the water, catches sleeve pipe to lift the present invention on the other hand; The free end that another pulls moving wire rope unplugs bottle cap through chuck the sampling of can uncapping under water; Then under gravity and hydraulic action; Capped is fetched water sample voluntarily, and whole process does not receive other pollution.Because tressel can move up and down, the present invention can hold the sampling bottle of multiple volume, adapts to the volume requirement of different quality sampling.Sleeve pipe is marked with the scale sign, the depth localization of water during convenient the sampling.River or trend were to the skew of depth localization when the weight that disposes on the base can prevent the deep layer sampling.The present invention can satisfy 3 requirements of water quality bacteria sampling fully.The present invention is simple and reasonable, and cost is cheap, and is easy to operate, can avoid sampling to stain, and guaranteed the representativeness and the comparability of institute's sample thief.
More than combine preferred embodiments that the present invention is specifically described, but those skilled in the art can make numerous variations or variation to these embodiments, these changes and variation should fall within the scope of the present invention's protection.