CN203705202U - Pipe orifice variable-diameter plug-in sampling instrument - Google Patents

Abstract

The utility model relates to a pipe orifice variable-diameter plug-in type sampling instrument, which structurally comprises tapered tubes, straight barrel-type tubes, a steady flow buffer tube, a core tube, a split-flow pressure regulating valve, a pressure gauge, a sampling hose, and a concentric type flow governor, wherein the pipe orifice variable-diameter plug-in type sampling instrument changes the constituent parts, the structure and the working principle of the original organic contamination water sample collection device, has the characteristics of small size, light weight, wide range of application, convenience for carrying and installation, simplicity in operation, safety in use, and a sample is prevented from being contaminated in the collection process; the pipe orifice variable-diameter plug-in type sampling instrument further improves the fidelity of the collected sample, reduces the collection cost of the sample, ensures the safety of personnel and equipment, and improves the universality of the sampling instrument.

Description

Mouth of pipe reducing plug-in type sampling instrument

Technical field

The utility model relates to a kind of harvester of the water sample that contains volatilization, half volatile material, specifically a kind of mouth of pipe reducing plug-in type sampling instrument.

Background technology

Suffer the water sample of Organic Pollution, due to its singularity that contains volatilization, half volatile material, the collection of its sample is different to the acquisition method of other water sample.

At present, the acquisition method of conventional Organic Pollution water sample is to extract the solid fire hose of pump line mouth place larynx banding of pollution water sample then the mode collected specimens of shunting by four-way.Sample unit used mainly comprises sample collection four-way, four-way shunt, the fire hose that has lining, larynx hoop, big or small pipe adapter, straight pipe, connects snap ring, tensimeter, spigot-and-socket adapter tower seat, pressure regulator valve, venting valve, transparent pressure-resistant plastic flexible pipe soon, flattens formula flow regulator and stainless-steel tube etc., when sampling, first to carry out assembling and on-the-spot installation of sample collecting apparatus, assemble and install kit used and consumptive material and comprise screwdriver, pipe wrench, spanner, raw material band, PVC glue, angle grinding machine etc.

The assembling mode of sample collecting apparatus is: the port one of sample collection four-way adopts inserted type quick coupling and four-way shunt to join; The port two-way of sample collection four-way is crossed screwed connection tensimeter; The port threeway of sample collection four-way is crossed screwed connection spigot-and-socket and is taken over tower seat, and spigot-and-socket is taken over one end of the other end connection transparent plastic hose of tower seat, outside solid with larynx banding; Transparent plastic hose is sleeved in flattening formula flow regulator, and the other end is fastened on one end of stainless-steel tube with larynx hoop; The port four-way of sample collection four-way is crossed screwed connection spigot-and-socket and is taken over tower seat, and spigot-and-socket is taken over one end of the other end connection transparent plastic hose of tower seat, outside solid with larynx banding; The other end of transparent plastic hose is fastened on one end of spigot-and-socket adapter tower seat with larynx hoop, spigot-and-socket is taken over the other end of tower seat by screwed connection pressure regulator valve.

The problem that traditional acquisition mode of Organic Pollution water sample exists is:

(1) fire hose using in sample collecting apparatus, transparent pressure-resistant plastic flexible pipe, raw material band etc. are contaminated samples easily, makes sample distortion; Particularly, in initial use procedure several times, the objectionable constituent that material therefor discharges can produce a very large impact the quality of sample, contaminated samples.

(2) parts of sample collecting apparatus are many, form complexity, and general assembly (TW) is greater than 80kg, bulky, carries inconvenience.

(3) Assembling program complexity, complex operation, consuming time longer.Part parts adopt American Standard, are unfavorable for connection each other, operation inconvenience.

(4) easily produce cavitation at flow through turning round of pipeline and reducing position of sample collection four-way and sample, in the time that the vacuum tightness in air pocket is greater than the saturated vapor pressure of some volatile matter in water or half volatile material, can cause overflowing of these volatility or half volatile material lost, make sample distortion.

(5) water flow adopts " flattening formula " flow regulator control, when adjust flux, the streamline bundle of water gradually becomes " flat " shape by " cylinder " shape, change the shape of streamline bundle, increase the probability of intermolecular mutual collision, the volatilization in Organic Pollution water sample, the probability that half volatile material is separated out are increased.

(6) when pump head or power are when larger, due to the reacting force of mouth of pipe water outlet, can cause being arranged on the swinging of venting valve of fire hose head, as not firm in controlled, can to operating personnel and around object produce to clash into and threaten.

(7) maximum specification of the suction pump mouth of pipe that sample collecting apparatus can dock is DN100, is greater than the pump line of this specification for scene, can not carry out sampling operation because docking.

(8) aquifer yield of the terminal stainless-steel tube of raw sample harvester is too little, sample collection overlong time, make the duration of contact of water sample and air longer, so both easily made volatility or half volatile material in water sample scatter and disappear, easily make again the reducing substances in water sample oxidized, cause sample distortion.

For water pollution survey and appraisal, the collection of sample has the effect of " taking over from the past and setting a new course for the future ".The height of sample fidelity directly has influence on the judgment accuracy of field investigation work in early stage and the authenticity of later stage indoor sample analysis result, and degree and scope that correct evaluation water is polluted are significant.

Sample error is too large, causes sometimes the diametrically opposite conclusion of evaluation result and actual conditions.If it is lost more that sample collection process is overflowed the polluter in sample, cause indoor detected value on the low side compared with actual value, just likely suffering contaminated waters be evaluated as uncontaminated or pollute light waters, pollution can not get paying attention to, and continues on for producing and life, finally makes pollution level continue to expand, directly affect the people's quality of life, for a long time for the production of, life drink, cause people's health impaired, directly affect the sound development of national economy.

In sample collection process, water sample is subject to the improper use of sampling instrument material and polluter increased content in the sample that causes, make indoor detected value higher than actual value, just likely divided into and polluted or the region of heavy contamination polluting or suffering to pollute lighter region, waste on the one hand treatment cost, make on the other hand the masses' ignorant of the fact mood be affected, be unfavorable for the stable of society.

Summary of the invention

The purpose of this utility model is just to provide a kind of mouth of pipe reducing plug-in type sampling instrument that is convenient for carrying, assembles and operate, the deficiency existing to overcome existing sample collecting apparatus, reduce to greatest extent the distortion of water sample, improve universality and the security of sampling instrument.

The utility model is achieved in that a kind of mouth of pipe reducing plug-in type sampling instrument, comprising:

The Taper Pipe that some joints can join successively and tapering is identical, for inserting in pollution water sample output pump line, steadily carries pollution water sample; Adjacent described Taper Pipe is by the cooperation of mutually pegging graft of the bell and spigot of end, on described bell and spigot, have the through hole of the some cross-under securing members that are uniformly distributed along the circumference, on the described Taper Pipe of described bell and spigot inboard, be welded with nut, the center pit of described nut communicates with described through hole;

Some can join and straight tube pipe that caliber is identical successively, are connected to the osculum end of the described Taper Pipe of a joint of aperture minimum, for extending the insertion depth of described Taper Pipe at pollution water sample output pump line;

Current stabilization separator tube, its one end is openend, is connected in the end port of described straight tube pipe, the other end is blind end, is connecting near offering on the sidewall of blind end the valve interface of shunting pressure regulator valve;

Core pipe, cross-under is in described current stabilization separator tube, and its end facing water is near the openend of described current stabilization separator tube, and is fixedly connected in described current stabilization separator tube by stator, its water side passes from the blind end of described current stabilization separator tube, on the water side of described core pipe, is connected to collar joint;

Shunting pressure regulator valve, is arranged on the described valve interface of described current stabilization separator tube, for regulating the water flow pressure of straight tube pipe pollution water sample;

Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detection of the water flow pressure of pollution water sample in current stabilization separator tube;

Sampling flexible pipe, is connected on the described collar joint that is arranged at described core pipe water side, for guiding out pollution water sample laminar condition from described core pipe to carry out water sampling; And

Concentric type flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted that gathers water sample.

Described concentric type flow regulator is in the body of rod of holding rod, to have the horizontal rope through of sampling the axial core hole of flexible pipe and communicating with described core hole described in cross-under, be provided with the rotating shaft euphroe that is wound around fastening rope in one end of described holding rod, described rope through is relative with described rotating shaft euphroe, the fastening rope pulling out from described rotating shaft euphroe is passing described rope through and is passing into behind described core hole, and its end is fixed on the body of rod of described holding rod; Described fastening rope encloses around described sampling flexible pipe one in described core hole.

The Taper Pipe using in the utility model has some joints, can connect to form a combination tapered cylinder, insert in pollution water sample output pump line, so just can export according to pollution water sample the size of pump line caliber, combine the Taper Pipe (and even omitting Taper Pipe) of corresponding aperture, the pollution water sample that makes sampling instrument of the present invention can insert various calibers is exported in pump line and is carried out water sampling, thereby forms the plug-in type water sample harvester of mouth of pipe reducing.

The end facing water of described core pipe is inclined-plane opening, and open section and horizontal direction angle are 55 °～56 °, and inclined-plane opening towards with described current stabilization separator tube on the opening direction of described valve interface run counter to.Enter after current stabilization separator tube at current, owing to being subject to shunting the impact of pressure regulator valve shunting, the water yield that in current stabilization separator tube, shunting one effluent is crossed is relatively many, for keep entering core pipe current streamline steadily, so adopt core pipe end facing water inclined-plane opening towards with current stabilization separator tube on the opening direction of valve interface run counter to such design.

Described rotating shaft euphroe is to be provided with in the upper end of described holding rod axially to deflect away from outside, core hole and cylinder seat opposing upper and lower and vertical shaft seat, and the top of described cylinder seat is opening end, on the base plate of described cylinder seat, has jack hole; In described vertical shaft seat, be connected with the rotatable vertical shaft as governor motion, the upper end of described vertical shaft is stretched in described cylinder seat through described jack hole, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line in the upper end of described vertical shaft; In described cylinder seat, be provided with to lock in axial sliding and put ring, put at described lock on the inner ring surface of ring and be provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft; In described cylinder seat, be provided with top spring, make described lock put ring under normal conditions by overhead to the position mutually concordant with described cylinder seat upper port, to engage vertical shaft described in locking by tooth bar; Described holding rod on the body of rod between described cylinder seat and described vertical shaft seat, have horizontal eyelet, the described fastening rope passing from described eyelet is fixed on described vertical shaft; Have prismatic key hole in the upper surface of described vertical shaft.

The degree of depth of described key hole is to be inserted at key at the end, makes described lock put ring and is pressed down by key and depart from and the engaging of described outer tooth bar on described vertical shaft.

The lower end that described lock is put the described outer tooth bar on upper end and the described vertical shaft of the described inner rack in ring is respectively is convenient to the pointed shape of pegging graft and coordinating each other.

The profile of tooth that described lock is put the described outer tooth bar on described inner rack and the described vertical shaft in ring is respectively triangle.

Described rotating shaft euphroe is to be provided with in the upper end of described holding rod axially to deflect away from outside, core hole and housing opposing upper and lower and axle bed, upright rotating shaft is housed in described housing, the lower end of described rotating shaft passes described housing and is movably connected on described axle bed, the upper end of described rotating shaft is connected to brings the wheel disc of taking turns edge, be provided with the axial internal tooth of a circle along inner side at the wheel of described wheel disc, in described rotating shaft, be provided with the profile of tooth section of one section of tape spool to external tooth, the toggle mechanism that described rotating shaft is rotated by stirring described profile of tooth section is housed in described housing, stirring in window that the press handle of described toggle mechanism is outputed from described housing sidewall stretched out, be provided with the lockable mechanism that makes rotating shaft stop by the internal tooth on wheel disc described in clamping in described case top, described fastening rope is connected on the revealed section of described rotating shaft.

Described toggle mechanism is, in the cylinder circle of the described rotating shaft of socket, press handle is housed, the side opening of described cylinder circle is stretched out in one end of described press handle, built-in section of described press handle is socketed with retracing spring, the inner face of described press handle is cancave cambered surface, is shaped with the end tooth that can be meshed with the profile of tooth section in described rotating shaft at the inner face of described press handle.

Described lockable mechanism comprises two shift forks and the fan-shaped shifting block between two described shift forks, one end of two described shift forks is hinged on respectively the wheel that reaches described wheel disc from described housing top board along on the inwall of an opening inner core circle of inner side, the free joint end of two described shift forks stretches out respectively the open section of described opening inner core circle, and under the stirring of described shifting block, be connected on the described internal tooth on described wheel disc medial surface; Between the middle part of lateral surface of two described shift forks and the inwall of described opening inner core circle, be respectively equipped with the top spring that promotes described shift fork return; On described shifting block, be connected to turning handle by coupling shaft, described turning handle is arranged on the lateral surface of described housing top board.

The utility model has effectively improved sample fidelity, is embodied in the following aspects:

(1) material category using is single, not pollution water sample.Each parts material used that sampling instrument of the present invention contacts with water only has two kinds, 304 stainless steels and silica gel, its physics, stable chemical performance, do not disengage material, avoided the improper artificial pollution causing of materials'use due to sampling instrument itself in sample collection process.

(2), using Taper Pipe as water inlet, the grain direction that current are entered after sampling instrument changes slowly; In in current stabilization separator tube, establish core pipe, kept current constant at the internal diameter that goes out stream section pipeline, the streamline of water is steady; The generation of air pocket has all effectively been avoided in two kinds of measures, thus reduce volatilization, half volatile material overflow probability.

(3) sampling hose discharge adopts concentric type flow regulator control and regulate, and makes the streamline bundle of water remain " cylinder " shape, has reduced the probability that volatilization, half volatile material are separated out.

(4) pressure of sampling instrument of the present invention is controlled at 0.18～0.2MPa, reduces 0.5～0.7MPa compared with the controlled pressure of raw sample harvester, has reduced the pressure gradient of sample collection process; In addition, the internal diameter of the sampling flexible pipe of sampling instrument of the present invention increases to 6mm, 2.25 times of sectional area in raw sample harvester rising pipe, improve sample collection efficiency, reduce the duration of contact of water sample and air, avoid in sample scattering and disappearing of volatilization, half volatile material as far as possible, reduce reducing substances in water sample and contact with air the oxidation reaction of generation, improved the fidelity of sample.

Parts composition of the present utility model is simple, being particularly suitable for water delivering orifice has the pump line of the foreign matters such as ring flange, on-the-spot easy for installation, easy and simple to handle, volume is little, lightweight, easy to carry, thus, both reduced the required personnel of sample collection and equipment delivery vehicle, the day of having improved again sample gathers quantity, thereby has realized the significantly reduction of sample collection cost.Due to the parts that are not flexible coupling, even if run into large lift or powerful water pump, the phenomenon that also there will not be parts to get rid of pendulum to surrounding, to staff and around object without any threat, eliminated the potential safety hazard in sampling work.

In addition, all parts of the present utility model all adopt GB, there is wider universality, the pump line mouth specification that can dock is respectively totally nine of DN150, DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, the maximum pump line mouth specification that gathers water sample expands DN150 to, has met the sampling needs of conventional water pump pump line mouth among the people.

The utility model has changed composition, structure and the principle of work of original Organic Pollution water sample acquisition device, have volume little, lightweight, applied widely, be easy to carry, easy for installation, simple to operate, use safely, avoid the features such as the pollution section of sample in gatherer process, improve the fidelity of collected specimens, reduce the acquisition cost of sample, guarantee the safety of personnel, equipment, improved the universality of sampling instrument.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the syndeton schematic diagram of Taper Pipe.

Fig. 3 is the unitized construction schematic diagram of current stabilization separator tube and core pipe.

Fig. 4 is the structural representation of concentric type flow regulator embodiment 1.

Fig. 5 is the structural representation of concentric type flow regulator embodiment 1 key used.

Fig. 6 is the structural representation of concentric type flow regulator embodiment 2.

Fig. 7 is that the A-A of the flow regulator of concentric type shown in Fig. 6 is to cut-open view.

Fig. 8 is that the B-B of the flow regulator of concentric type shown in Fig. 6 is to cut-open view.

Embodiment

As shown in Figure 1, the utility model comprises the ingredient such as more piece Taper Pipe 6, many straight tube pipes 5, current stabilization separator tube 4, core pipe 10, shunting pressure regulator valve 9, tensimeter 7, sampling flexible pipe 1 and a concentric type flow regulator.Wherein, Taper Pipe 6, straight tube pipe 5, current stabilization separator tube 4 and core pipe 10 etc. are all to make with 304 stainless steels, and sampling flexible pipe 1 is the withstand voltage transparent hose made from silica gel.

Configurable 4-6 joints of Taper Pipe 6, tapering is preferably controlled at 6.5 °～7 °, and the tapering of each pitch cone pipe is identical, and five pitch cone pipes can connect to form a combination tapered cylinder successively.In Fig. 2, adjacent two pitch cone pipes 6, by the cooperation of mutually pegging graft of the bell and spigot of end, have the through hole being uniformly distributed along the circumference on bell and spigot, and cross-under securing member in through hole, to achieve a fixed connection.In bell and spigot, be positioned on the madial wall of an inboard pitch cone pipe and be welded with nut 14, the center pit of nut 14 communicates with through hole, and so just can only be screwed into screw rod 13 from outside can fix.Screw rod 13 can be selected butterfly screw rod, can install by hand fixing.

The less pump line of caliber using for scene, can be as the case may be, from the front end of combination tapered cylinder in turn except the Taper Pipe of large specification so that combination tapered cylinder is to the insertion in pump line.Internal and external screw thread form in threaded port between adjacent Taper Pipe can be replaced mutually; O shape cushion rubber should be set in Taper Pipe junction to be sealed.In addition, the threaded port on Taper Pipe 6 both can be parallel with the tube wall of Taper Pipe, also can be shaped with certain gradient, and the latter is more convenient for mounting and dismounting.When pump line aquifer yield hour, can, in the outer felt of the big opening end of combination tapered cylinder around some flexible things, form the effect of cramming to pump line inwall gap so that current are as far as possible all by combination tapered cylinder, thereby increase the discharge pressure of follow-up core pipe.

Straight tube pipe 5 is isometrical straight tube, and 40-50cm mono-saves, configurable 4-6 joints, its one end is external screw joint, the other end is internal thread interface, so that realize connection each other, and can be respectively threaded with osculum end and the current stabilization separator tube 4 of the Taper Pipe of minimum gauge.The hickey at straight tube pipe 5 two ends preferably also has certain gradient, so that installation and removal.Also being provided with O shape cushion rubber at the hickey place of straight tube pipe 5 seals.

In Fig. 3, the left end of current stabilization separator tube 4 is openend, is connected in the end port of straight tube pipe 5, and right-hand member is blind end, is offering valve interface 11 near on the sidewall of blind end, in order to connect shunting pressure regulator valve 9.Adjust the aperture of shunting pressure regulator valve 9, just can regulate the water flow pressure of the pollution water sample of the current stabilization separator tube 4 of flowing through.Shunting pressure regulator valve 9 can be used ball valve, butterfly valve, stop valve, gate valve etc., take ball valve as preferred.On current stabilization separator tube 4, also have pressure gauge connection, Bonding pressure table 7.Tensimeter 7 is in order to detect the water flow pressure of the pollution water sample in current stabilization separator tube 4 of flowing through, and the adjustment of pressure regulator valve 9 is shunted in indication.

In current stabilization separator tube 4, cross-under has core pipe 10, and the end facing water of core pipe 10 is near the openend of current stabilization separator tube 4, and is fixedly connected in current stabilization separator tube 4 by three stainless steel stators 12.The end facing water of core pipe 10 is inclined-plane opening, and open section and horizontal direction angle are 55 °～56 °, and inclined-plane opening towards with current stabilization separator tube 4 on the opening direction of valve interface 11 run counter to.Three stators 12 are uniform along the tube wall cylindrical of core pipe 10, and longitudinally to arrange along tubular axis line with the angle of 60 ° of core pipe radial sections, to reduce the impact on current as far as possible.The water side of core pipe 10 passes from the blind end of current stabilization separator tube 4, and is fixedly connected with the blind end of current stabilization separator tube 4.On the water side of core pipe 10, be connected to collar joint 8, with reliable and stable the sampling flexible pipe 1 that connects.

Sampling flexible pipe 1 is the flexible pipe made from silica gel, its one end is connected on the collar joint 8 connecting on the water side of core pipe 10, the other end, through concentric type flow regulator (Fig. 1), regulates the uninterrupted that gathers water sample by concentric type flow regulator.The free-ended extension elongation of sampling flexible pipe 1 should be no less than 30cm.

Concentric type flow regulator is in a staight shank holding rod 3, to have axial core hole, sampling flexible pipe 1 is through the axial core hole of staight shank holding rod 1, be provided with rotating shaft euphroe 2 in the upper end of holding rod 1, the free-ended extension elongation that sampling flexible pipe 1 passes after holding rod 1 should be no less than 30cm, carries out water sampling operation so that insert in sampling bottle.

Fig. 4 is the first specific implementation of concentric type flow regulator.

As shown in Figure 4, this concentric type flow regulator is in a staight shank holding rod 3, to have axial core hole, sampling flexible pipe 1 is through the core hole of holding rod 3, be provided with the rotating shaft euphroe 2 horizontally rotating in one end of holding rod 3, on the governor motion of rotating shaft euphroe 2, be fixed with fastening rope 20, fastening rope 20 is embedded in the locating groove 301 of outputing in holding rod 3 ends (referring to Fig. 7) after enclosing around sampling flexible pipe 1 one.

In Fig. 4, rotating shaft euphroe 2 is to be provided with cylinder seat 205 and vertical shaft seat 209 in one end of holding rod 3, and cylinder seat 205 is relative up and down with vertical shaft seat 209, and the upper end of cylinder seat 205 is opening end, has core hole on the lower surface of cylinder seat 205; In vertical shaft seat 209, be connected with vertical shaft 202, the upper end of vertical shaft 202 is stretched in cylinder seat by the core hole on cylinder seat lower surface.The axis parallel of vertical shaft 202 is in the axial line of holding rod 3, and vertical shaft 202 can rotate by opposed axle bed 209.The set-up mode of vertical shaft can be to be connected with metal ring 208 at the bottom of vertical shaft 202 positioning end, after ring set end is inserted to the position, hole on vertical shaft seat 209, then shelters from ring set 208 with cover plate 207, and vertical shaft 202 is positioned in vertical shaft seat 209.Cover plate 207 is fixed on vertical shaft seat 209 by securing member, to cover position, hole.The top free end of vertical shaft 202 is arranged in cylinder seat 205, is provided with at the free end of vertical shaft 202 the outer tooth bar that a circle is parallel to vertical shaft center line.Fastening rope 20 passes after the eyelet holding rod 3 from inner side, core hole, and fixing also solderless wrapped connection is on the revealed section of vertical shaft 202.The eyelet of cross-under fastening rope is on the holding rod 3 between cylinder seat and vertical shaft seat.On the free-ended end face of vertical shaft 202, have quadrangular that grafting unlock key uses or the jack 210 of hexagon.In cylinder seat 205, be provided with to lock in axial sliding and put ring 201, the sidewall of putting ring 201 at lock has notch 203, the screw 204 that utilizes cross-under cylinder seat 205 sidewalls and lock are put coordinating of notch 203 on ring, can make lock put ring 201 and can only in cylinder seat 205, slide axially and can not rotate.Put on the inner ring surface that encircles 201 and be provided with the inner rack that a circle can be meshed with the outer tooth bar on vertical shaft 202 at lock.In cylinder seat 205, be provided with spring 206, make lock put ring 201 under normal conditions by overhead to the position mutually concordant with cylinder seat 205 ports, to put the intermeshing of outer tooth bar on inner rack and the vertical shaft 202 on ring by lock, and by vertical shaft 202 lockings firmly.

In process, occur that the situation that the increment of inside and outside tooth bar pins mutually occurs for avoiding lock to put ring 201 moving up and down, the lower end that lock can be put to the outer tooth bar on upper end and the vertical shaft 202 of the inner rack of ring in 201 is made for respectively the pointed shape of triangle etc., the cooperation so that inside and outside tooth bar is pegged graft each other.

Lock is put to the unlocking operation of ring 201, by custom-designed unlock key 211(Fig. 5) carry out; To the flow regulation of sampling flexible pipe 1, also operate by unlock key 211.In Fig. 3, on unlock key 211, be provided with pushing and lock external toroidal ring 213 and the quadrangular of grafting vertical shaft or the inserted link of hexagon 212 of putting ring.In inserted link 212 is plugged into the prismatic jack 210 on vertical shaft 202 after (being inserted into the end), external toroidal ring 213 on unlock key 211 pushes in cylinder seat 205 with putting ring 201 by lock, the outer tooth bar that lock is put on inner rack and the vertical shaft 202 on ring is separated, now, by rotating the handle of unlock key, can stir vertical shaft 202 clockwise or rotate counterclockwise, the fastening rope 20 that makes to be connected on vertical shaft 202 is tightened up or loosens, thereby to fastening rope around sampling flexible pipe 1 carry out concentric folding and unfolding, make the streamline bundle that gathers water sample remain " cylinder " shape, reduce thus volatilization, the probability that half volatile material is separated out.

In Fig. 4, on the inwall of the core hole of holding rod 3, can make the ring groove (relative with the eyelet of cross-under fastening rope) of an about 2mm of the degree of depth so that fastening rope 20 can embedded groove in, freely hoop slides.

Fig. 6-Fig. 8 is the second specific implementation of concentric type flow regulator.

As shown in Figure 6, Figure 7, concentric type flow regulator is in the holding rod 3 of a staight shank shape, to have axial core hole, cross-under sampling flexible pipe 1 in core hole, on the body of rod of holding rod 3, have the horizontal rope through communicating with core hole, be provided with the rotating shaft euphroe that is wound around fastening rope in one end of holding rod 3, the fastening rope 20 pulling out from rotating shaft euphroe is passing the rope through on holding rod 3 and is passing into behind core hole, and its end is fixed on the body of rod of holding rod 3.

The termination fixed form of fastening rope 20 can have multiple, the one, can output in the upper surface of holding rod 3 a bar seam 301 tangent with edge, core hole, the degree of depth of bar seam reaches the height of rope through, and the termination of fastening rope 20 is rabbeted and is fixed in this seam 301 on holding rod 3 (Fig. 7); The 2nd, can in holding rod 3, connect rope through, the termination of fastening rope 20 passes rope through, is fixed on the body of rod of holding rod 3.Penetrate behind the core hole of holding rod at sampling flexible pipe 1, fastening rope 20 encloses around sampling flexible pipe one in core hole, forms ring type and tightly restraints governor motion.

The aperture, core hole of holding rod 3 is preferably identical with the external diameter of the sampling flexible pipe 1 of institute cross-under.Because sampling flexible pipe 1 self has good elasticity, therefore, successfully cross-under holding rod core hole.Adopt after the set-up mode of same diameter, with the core hole inwall of the holding rod of rope through equal height on just should make a ring groove around core hole inwall, fastening rope can be free to slide in grooved ring shape, regulate with the stretching that facilitates fastening rope 20, and reduce the deformation effect of even avoiding the non-annulus to sampling flexible pipe 1.

As shown in Figure 6, described rotating shaft euphroe is to be provided with in the upper end of holding rod 3 axially to deflect away from outside, core hole and housing opposing upper and lower 214 and axle bed 223, and upright rotating shaft 222 is housed in housing 214.The lower end of rotating shaft 222 passes after housing base plate 221, is movably connected on axle bed 223.The upper end of rotating shaft 222 is connected to brings the circular wheel disc 211 of taking turns edge, be provided with the axial internal tooth of a circle along inner side at the wheel of wheel disc 211, in rotating shaft 222, be provided with the profile of tooth section of one section of tape spool to external tooth, in housing 214, toggle mechanism is housed, by stirring of the profile of tooth section on countershaft 222, rotating shaft 222 is rotated thereupon.In toggle mechanism, be provided with implement stir operation use press handle 219, the outboard end of press handle 219 from output at the sidewall of housing 214 stir window in stretch out.Inside top at housing 214 is provided with lockable mechanism, and lockable mechanism, by the clamping to the internal tooth on wheel disc 211, makes rotating shaft 222 stop.Fastening rope 20 is connected on the revealed section of rotating shaft 222, and the revealed section of rotating shaft 222 is between housing 214 and axle bed 223.

As shown in Fig. 6, Fig. 8, described toggle mechanism comprises cylinder circle 218, press handle 219 and retracing spring 220; Cylinder circle 218 is socketed in the middle part of rotating shaft 222, and press handle 219 is arranged in cylinder circle 218; A side opening for cylinder circle 218 is stretched out in one end of press handle 219, and retracing spring 220 is socketed in cylinder circle built-in section of press handle 219.In Fig. 3, the inner face of press handle 219 is the cancave cambered surface that can be coated rotating shaft 222, is shaped with end tooth at the inner face of press handle 219, and end tooth axially arranges, and is covered with the inner face of press handle, and can with rotating shaft 222 on profile of tooth section intermeshing.In the time press...withing one's finger lower press handle 219, the end tooth on press handle 219 inner faces with rotating shaft 222 on profile of tooth section intermeshing, be now that available finger rotates rotating shaft 222 by stirring press handle 219 thereupon.Unclamp after finger, retracing spring 220 promotes press handle 219 returns, the end tooth on press handle 219 with rotating shaft 222 on profile of tooth section depart from voluntarily.

The effect that is arranged on the lockable mechanism in rotating shaft euphroe 2 is by the clutch operation to wheel disc 211, makes rotating shaft 222 lock or unclamp.As shown in Figure 1 and Figure 2, lockable mechanism comprises two shift forks 216 and the fan-shaped shifting block 215 between two shift forks, one end of two shift forks 216 is hinged on respectively on the inwall of opening inner core circle 212, the upper edge of opening inner core circle 212 is fixed on the top board inner side of housing 214, the wheel that opening inner core circle 212 extends downwardly into wheel disc 211, along inner side, is provided with the open section that a central angle is about 120 ° on opening inner core circle 212.The free joint end of two shift forks 216 stretches out respectively the open section of described opening inner core circle 212, and can be under the stirring of shifting block 215, is connected on the internal tooth on wheel disc 211 medial surfaces.In Fig. 2, between the middle part of lateral surface of two shift forks 216 and the inwall of opening inner core circle 212, be respectively equipped with top spring 217, to promote shift fork self-return.On shifting block 215, be connected to by coupling shaft the turning handle 213 of controlling clutch operation, turning handle 213 is arranged on the lateral surface of housing 214 top boards.

When use, first pull turning handle 213, make the free joint end of shift fork 216 depart from the interior edge of wheel disc 211, wheel disc 223 is released, the press handle 219 press...withing one's finger again in lower toggle mechanism, end tooth on press handle 219 is engaged with the profile of tooth section in rotating shaft 222, by stirring press handle 219, can drive rotating shaft 222 forward or reverse, adjustment is wrapped in the degree of drawing of the fastening rope 20 on sampling flexible pipe 1, with to fastening rope around sampling flexible pipe 1 carry out concentric folding and unfolding, adjust sampling flexible pipe 1 and restrain the size of the interior circular section at place, make to remain " cylinder " shape by the streamline bundle of the collection water sample in sampling flexible pipe 1, realize thus the object of sampling flexible pipe 1 being carried out to the flow adjustment of concentric-ring pattern, reduce the volatilization in pollution water sample in sampling process, half volatile material separate out probability.Unclamp after finger, the retracing spring 220 in toggle mechanism promotes press handle 219 returns, and the profile of tooth section in the end tooth on press handle 219 and rotating shaft 222 is separated, and once adjusts and finishes.

Principle of work of the present utility model is: first as required and field condition, determine the pattern length that connects quantity and required straight pipe 5 of Taper Pipe 6 used; Then combination tapered cylinder current stabilization separator tube 4 front ends being connected and straight pipe all insert in pollution water sample output pump line, and current stabilization separator tube is tied up and is fixed on pump line with rope etc.After rear pump work, the water outlet of pump line mouth enters in current stabilization separator tube 4 by combination tapered cylinder and straight pipe, regulates shunting pressure regulator valve 9, and the reading that makes tensimeter 7 is 0.18～0.2MPa; Grasp concentric type flow regulator, stretching sampling flexible pipe 1, makes its water delivering orifice upward, exceeds the end face 800mm of current stabilization separator tube 21 and is erectility; Slowly regulate concentric type flow regulator, the water polo face height of flexible pipe 1 water outlet that makes to sample is less than 5mm, and the flexible pipe 1 of guaranteeing to sample is inner and the current of water outlet in lose bubble; The water delivering orifice of sampling flexible pipe 1 is slowly inserted in the sampling bottle (for the sample collection containing half volatile material) of 2000ml, until the water side of sampling flexible pipe 1 is about 5～8mm with bottle end distance, place motionlessly, when the water surface is from the about 50mm of bottleneck distance in bottle, slowly propose sampling flexible pipe 1.Carrying in pipe process, guarantee that the water delivering orifice of sampling flexible pipe 1 and the water surface distance in bottle are not more than 5mm, until sampling bottle is filled water sample.Finally tighten bottle cap, be inverted micro-striking, in bottle, without Bubble formation, complete the collecting work of large bottle sample.

While gathering the pollution water sample that contains volatile matter, the flexible pipe 1 of sampling slowly inserts in sampling bottle (2 40ml), along with the continuous rising of the water surface in bottle, slowly promote sampling flexible pipe 1, carry in pipe process, the water delivering orifice and the water surface distance that guarantee sampling flexible pipe 1 are not more than 5mm, until fill water sample, tighten bottle cap, be inverted micro-striking, in bottle, without Bubble formation, complete sample collection.

The utility model also can gather other water sample.

Claims (9)

1. a mouth of pipe reducing plug-in type sampling instrument, is characterized in that, comprising:

The Taper Pipe that some joints can join successively and tapering is identical, for inserting in pollution water sample output pump line, steadily carries pollution water sample; Adjacent described Taper Pipe is by the cooperation of mutually pegging graft of the bell and spigot of end, on described bell and spigot, have the through hole of the some cross-under securing members that are uniformly distributed along the circumference, on the described Taper Pipe of described bell and spigot inboard, be welded with nut, the center pit of described nut communicates with described through hole;

Some can join and straight tube pipe that caliber is identical successively, are connected to the osculum end of the described Taper Pipe of a joint of aperture minimum, for extending the insertion depth of described Taper Pipe at pollution water sample output pump line;

Current stabilization separator tube, its one end is openend, is connected in the end port of described straight tube pipe, the other end is blind end, is connecting near offering on the sidewall of blind end the valve interface of shunting pressure regulator valve;

Core pipe, cross-under is in described current stabilization separator tube, and its end facing water is near the openend of described current stabilization separator tube, and is fixedly connected in described current stabilization separator tube by stator, its water side passes from the blind end of described current stabilization separator tube, on the water side of described core pipe, is connected to collar joint;

Shunting pressure regulator valve, is arranged on the described valve interface of described current stabilization separator tube, for regulating the water flow pressure of straight tube pipe pollution water sample;

Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detection of the water flow pressure of pollution water sample in current stabilization separator tube;

Sampling flexible pipe, is connected on the described collar joint that is arranged at described core pipe water side, for guiding out pollution water sample laminar condition from described core pipe to carry out water sampling; And

Concentric type flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted that gathers water sample;

Described concentric type flow regulator is in the body of rod of holding rod, to have the horizontal rope through of sampling the axial core hole of flexible pipe and communicating with described core hole described in cross-under, be provided with the rotating shaft euphroe that is wound around fastening rope in one end of described holding rod, described rope through is relative with described rotating shaft euphroe, the fastening rope pulling out from described rotating shaft euphroe is passing described rope through and is passing into behind described core hole, and its end is fixed on the body of rod of described holding rod; Described fastening rope encloses around described sampling flexible pipe one in described core hole.

2. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, the end facing water of described core pipe is inclined-plane opening, and open section and horizontal direction angle are 55 °～56 °, and inclined-plane opening towards with described current stabilization separator tube on the opening direction of described valve interface run counter to.

3. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described rotating shaft euphroe is to be provided with in the upper end of described holding rod axially to deflect away from outside, core hole and cylinder seat opposing upper and lower and vertical shaft seat, the top of described cylinder seat is opening end, on the base plate of described cylinder seat, has jack hole; In described vertical shaft seat, be connected with the rotatable vertical shaft as governor motion, the upper end of described vertical shaft is stretched in described cylinder seat through described jack hole, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line in the upper end of described vertical shaft; In described cylinder seat, be provided with to lock in axial sliding and put ring, put at described lock on the inner ring surface of ring and be provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft; In described cylinder seat, be provided with top spring, make described lock put ring under normal conditions by overhead to the position mutually concordant with described cylinder seat upper port, to engage vertical shaft described in locking by tooth bar; Described holding rod on the body of rod between described cylinder seat and described vertical shaft seat, have horizontal eyelet, the described fastening rope passing from described eyelet is fixed on described vertical shaft; Have prismatic key hole in the upper surface of described vertical shaft.

4. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the degree of depth of described key hole is to be inserted at key at the end, makes described lock put ring and is pressed down by key and depart from and the engaging of described outer tooth bar on described vertical shaft.

5. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the lower end that described lock is put the described outer tooth bar on upper end and the described vertical shaft of the described inner rack in ring is respectively is convenient to the pointed shape of pegging graft and coordinating each other.

6. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the profile of tooth that described lock is put the described outer tooth bar on described inner rack and the described vertical shaft in ring is respectively triangle.

7. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described rotating shaft euphroe is to be provided with in the upper end of described holding rod axially to deflect away from outside, core hole and housing opposing upper and lower and axle bed, upright rotating shaft is housed in described housing, the lower end of described rotating shaft passes described housing and is movably connected on described axle bed, the upper end of described rotating shaft is connected to brings the wheel disc of taking turns edge, be provided with the axial internal tooth of a circle along inner side at the wheel of described wheel disc, in described rotating shaft, be provided with the profile of tooth section of one section of tape spool to external tooth, the toggle mechanism that described rotating shaft is rotated by stirring described profile of tooth section is housed in described housing, stirring in window that the press handle of described toggle mechanism is outputed from described housing sidewall stretched out, be provided with the lockable mechanism that makes rotating shaft stop by the internal tooth on wheel disc described in clamping in described case top, described fastening rope is connected on the revealed section of described rotating shaft.

8. mouth of pipe reducing plug-in type sampling instrument according to claim 7, it is characterized in that, described toggle mechanism is, in the cylinder circle of the described rotating shaft of socket, press handle is housed, the side opening of described cylinder circle is stretched out in one end of described press handle, built-in section of described press handle is socketed with retracing spring, the inner face of described press handle is cancave cambered surface, is shaped with the end tooth that can be meshed with the profile of tooth section in described rotating shaft at the inner face of described press handle.

9. mouth of pipe reducing plug-in type sampling instrument according to claim 7, it is characterized in that, described lockable mechanism comprises two shift forks and the fan-shaped shifting block between two described shift forks, one end of two described shift forks is hinged on respectively the wheel that reaches described wheel disc from described housing top board along on the inwall of an opening inner core circle of inner side, the free joint end of two described shift forks stretches out respectively the open section of described opening inner core circle, and under the stirring of described shifting block, be connected on the described internal tooth on described wheel disc medial surface; Between the middle part of lateral surface of two described shift forks and the inwall of described opening inner core circle, be respectively equipped with the top spring that promotes described shift fork return; On described shifting block, be connected to turning handle by coupling shaft, described turning handle is arranged on the lateral surface of described housing top board.