CN109211626A - A kind of air detection sampler - Google Patents

Abstract

The present invention relates to a kind of air detection samplers, include: shell is set as hollow structure；Sampler barrel is set as the hollow cylinder of open ports, the air inlet for being disposed far from described open ports one end, the gas outlet for being disposed far from the open ports one side wall including one end；Propulsion device, including be set in the hollow cylinder and the piston that is slidably connected with the hollow cylinder, one end be fixed on the piston far from an end face of air inlet pushing ram, set on the driving device of the pushing ram other end, the pushing ram is set as worm screw, and the driving device includes the worm gear for being fixed on the intracorporal driving motor of the shell by support plate, being sheathed in the driving motor output shaft and engaging with the pushing ram；Sample storage unit passes through pipeline respectively and is connected to the gas outlet.The present invention is by remote controlled sampling, and avoiding sampling personnel from needing always, operation sampler is sampled in collection point, to reduce risk of the sampling personnel when taking sample.

Description

A kind of air detection sampler

Technical field

The present invention relates to gas detection equipment field, in particular to a kind of air detection sampler.

Background technique

Gas sampler is widely used in the use of the units such as atmosphere environment supervision, health and epidemic prevention, labour protection, scientific research, can also It is matched with related instrument.By analyzing sample gas, to understand the degree that environment is polluted by pernicious gas, and to related Authorities provide the actual conditions of pollution, to take some countermeasures, to ensure that people have the living environment of health.

Chinese patent CN108152091A discloses a kind of air detection sampler, including the acquisition of gas collecting tube, piston, gas source Ball and sampling bag are equipped with piston in gas collecting tube, are equipped with an air inlet pipe in the top surface of gas collecting tube front, are equipped in air inlet pipe Gas source acquires ball.The front end face of gas collecting tube is sealing surface, and an escape pipe is equipped at the center of front end face.By pushing and pulling piston The air of sampling is sent into sampling bag and is stored.After the air in sampling bag reaches standard, sampling bag is removed, seals sampling bag Mouthful, it is put into sampling cabinet in case detection, then carries out next sub-sampling again.

When taking sample using above-mentioned air detection sampler, needing to sample personnel, in collection point, operation is taken always Sample, larger for the harmfulness of some gases, contact for a long time is easy to make one to be poisoned or suffocate, to make sampling, there is safety Hidden danger.

Summary of the invention

It is an object of the invention to overcome defect existing in the prior art, provides one kind and taken by remote controlled Sample, avoiding sampling personnel from needing always, operation sampler is sampled in collection point, so that reducing sampling personnel is taking examination The air detection sampler of risk when sample.

To achieve the above object, the technical solution of the present invention is to provide a kind of air detection samplers, comprising:

A kind of air detection sampler, comprising:

Shell is set as hollow structure；

Sampler barrel is disposed in the housing, and is set as the hollow cylinder of open ports including one end, is disposed far from the open ports The air inlet of one end, the gas outlet for being disposed far from the open ports one side wall, it is unidirectional that the air inlet, gas outlet are equipped with first Valve；

Propulsion device, it is solid including the piston that is set in the hollow cylinder and is slidably connected with the hollow cylinder, one end Due on an end face of the piston far from air inlet pushing ram, set on the driving device of the pushing ram other end, it is described Pushing ram is set as worm screw, and the driving device includes being fixed on the intracorporal driving motor of the shell by support plate and being arranged In the worm gear engaged in the driving motor output shaft and with the pushing ram；

Sample storage unit, is disposed in the housing, including one or more sample storage devices, the input end of each sample storage device It is connected to respectively by pipeline with the gas outlet, shell one side wall corresponding with the outlet end of the sample storage device is equipped with and opens Mouthful.

In order to can move up and down pushing ram to moving up and down with piston, currently preferred technical solution It is that one end mask of the support plate is set at the open ports of the hollow cylinder and one side wall is fixed on the case inside Wall, the support plate and the pushing ram corresponding position are equipped with through-hole, are coaxially provided with the first fixing seat in the through-hole, and described the The aperture cooperated with the pushing ram is equipped among one fixing seat, the pushing ram is arranged in the aperture of first fixing seat And extend to the side far from the sampler barrel.

In order to which when pushing ram will move to the contact of hollow cylinder inner sidewall on piston, damper piston is in hollow cylinder The active force of side wall, currently preferred technical solution are that the piston includes and outer diameter interior set on the hollow cylinder and institute State piston block, the end face end face far from the air inlet of being fixed on the piston block of hollow cylinder inner sidewall diameter adaptation On buffer unit, the buffer unit other end is fixed on described pushing ram one end.

In order to which when pushing ram will move to the contact of hollow cylinder inner sidewall on piston, damper piston is in hollow cylinder The active force of side wall, currently preferred technical solution be, the buffer unit includes that one end is set as open ports and the other end is solid Due on an end face middle position of the piston block far from the air inlet sliding sleeve, be set to the sliding sleeve in and with the cunning The for covering the sliding shoe being slidably connected, being fixed between one end face of the sliding sleeve and the sliding shoe close to the piston block One spring and the first stop collar for being fixed at sliding sleeve open ports end, first spring one end are fixed on the cunning It covers on the inner sidewall of the piston block, the other end is fixed on the sliding shoe on an end face of the piston block, institute It states sliding shoe and is equipped with annular groove close to an end face of first stop collar, be equipped in the annular groove solid by the first pin Due to the annular groove two sidewalls and with the annular groove cooperation sliding seat, the sliding seat is close to the annular groove Multiple first columns are uniformly provided on the same circumference of the one side of slot bottom, multiple first columns are sold with described first respectively Mounting hole it is corresponding, be arranged with second spring outside each first column, described second spring one end is sheathed on described first On column, the other end be fixed on the annular groove slot bottom, one side wall end face of the sliding shoe far from the second spring It is equipped with sealing ring mounting groove, is equipped with rubber ring, the sliding seat and each first column pair in the sealing ring mounting groove Answer the side wall of position to cross equipped with multiple first strip-shaped holes, each first pin sequentially pass through the annular groove side wall and its The sliding seat is fixed in the annular groove by corresponding first strip-shaped hole.

In order to detect whether piston contacts with hollow cylinder, so that pushing ram be avoided to be moved through more and cause hollow The damage of cylinder, currently preferred technical solution be, the piston further include be fixed at the piston block close to it is described into One end face of port and the pressure sensitive device being electrically connected with the driving motor.

In order to avoid rainwater enters in sampler barrel, leading to extracted air and actual conditions, there are error, the present invention Preferred technical solution is that the air detection sampler further includes the sampling connecting with the first check valve of the inlet port Head and rain cover above the sampling head is covered at, the sampling head is set as bell mouth shape, and the sampling head input end is set There is grid.

In order to which when carrying out multiple repairing weld, without frequently replacement sample storage device, currently preferred technical solution is, described Sample storage device includes the multiple control valves being connect by pipeline with the first check valve of the gas outlet and each control valve The sample storage bag that multiple second one-way valves of outlet end connection, input end are connect with the outlet end of the second one-way valve, the storage The input end of sample bag is equipped with pressure gauge, and the outlet end of the sample storage bag is equipped with air outlet valve, the pressure gauge and control valve electricity Property connection.

In order to which more convenient, easily replacement sample storage device, currently preferred technical solution are, the second one-way valve Outlet end is equipped with the first pipeline, and the air detection sampler further includes first that one end is fixed at the sample storage bag input end Connector and one end are fixed at the second connector on the pipeline of the second one-way valve outlet end, second connection Part, first connector and second connector are clamped.

In order to avoid improving the leakproofness between the first and second connector, currently preferred technical solution is described first Connector includes that one end is fixed at the first round tube of the sample storage bag input end, is fixed on the folding of first round tube one end Side, the flanging lateral wall are equipped with cricoid groove, are uniformly provided with multiple first on same circumference among the groove slot bottom Spring mounting hole, the groove is interior to be equipped with the sliding block being slidably connected with the groove inner sidewall, and the slider bottom is equipped with third Spring, the third spring one end is fixed in first spring mounting hole, the other end is fixed on the sliding block close to described One end face of groove slot bottom, the section of the sliding block are set as T-type, and the sliding block includes the cunning that size is adapted to the groove size Dynamic seat and the clamping block being fixed on side of the sliding seat far from the third spring, the clamping block side by It is obliquely installed on close to the direction far from the sliding seat and is greater than close to the width of the sliding seat side far from the cunning The width of seat side is moved, the limit plate that size is adapted to the groove size, the limit plate are equipped at the notch of the groove Middle position is equipped with the through-hole being adapted to the clamping block, and first connector is equipped with far from the one side wall of first round tube Cricoid boss.

In order to avoid improving the leakproofness between the first and second connector, currently preferred technical solution is described second Connector include one end be fixed on the pipeline of the second one-way valve outlet end the second round tube, be fixed on second round tube Clamping seat, the clamping seat middle position is equipped with stepped hole, and the step bore dia is by far to close second round tube Direction be gradually reduced, the internal diameter in first step hole far from second round tube one end is adapted to the flanging outer diameter, close The second step hole internal diameter of second round tube one end is adapted to the second round tube outer diameter, and first step hole inner sidewall is set There is the clamping groove with clamping block cooperation, one side wall of the first step hole close to the second step hole is equipped with cyclic annular recessed Slot is uniformly provided with multiple second spring mounting holes on same circumference among the annular recess slot bottom, sets in the annular recess Have and is fixed in the annular recess and the second fixing seat compatible with the annular recess size by multiple second pins, institute It states the second fixing seat and is equipped with the limit that diameter is less than the second fixing seat diameter far from the one side of the second spring mounting hole Position block is equipped with the second stop collar of size and the annular recess size fit at the annular recess notch, and described second limits The through-hole with limited block cooperation is offered among the ring of position, the limited block is arranged in second stop collar and extends to institute It states on the outside of annular recess, one side wall end face of the limited block far from the second spring mounting hole is installed equipped with sealing ring Slot, the sealing ring mounting groove is interior to be equipped with sealing ring, one side wall of second fixing seat close to the second spring mounting hole Same circumference on be uniformly provided with multiple second columns, multiple second columns mounting hole pair with second pin respectively It answers, is arranged with the 4th spring outside each second column, the 4th spring one end is sheathed on second column, is another End is fixed in the second spring mounting hole, and second fixing seat and the side wall of each second column corresponding position cross Equipped with multiple second strip-shaped holes, each second pin sequentially passes through the annular recess side wall and its corresponding second strip-shaped hole Second fixing seat is fixed in the annular recess.

In order to avoid small winged insect, sundries are fallen in the pipeline of air inlet by air inlet, and block the air inlet of sampler barrel Mouthful, currently preferred technical solution be further include that one end connect with the first check valve at the air inlet and inverted u-shaped sets The bend pipe set, the anti-scolite for being fixed at the bend pipe other end, the anti-scolite include be set as hollow type and one end with it is described The siphunculus of bend pipe connection, with being located in the siphunculus and the intermediate partition for being equipped with through-hole, that diversity is set to the partition is close The multiple bending shape baffles and be fixed at by multiple connecting rods described that the bend pipe side and circular array arrangement are arranged Partition far from the bend pipe side and tapered setting it is conical baffled, the conical baffled outer diameter is by close to far from described Setting incremented by successively on the direction of bend pipe.

Technical solution of the present invention has the advantages that

1. a kind of air detection sampler provided by the invention is equipped with driving device, pass through control driving motor work, band The rotation of the dynamic rotation for being sheathed on worm gear in driving motor output shaft, worm gear drives the worm screw engaged with worm gear move down Dynamic, worm screw moves up and down sliding up and down with piston, to be sampled to the air in required detection environment, and is not required to It to be closely sampled, need to be only sampled by remotely controlling, tool can be encountered so as to avoid when closely sampling There is the danger of certain degree of harm gas.

2. a kind of air detection sampler provided by the invention is equipped with buffer unit, when the work belt by driving device Dynamic pushing ram gradually moves up when piston is contacted with hollow cylinder inner sidewall and extruded hollow cylinder madial wall, when between the two Contact to a certain extent when, driving motor and pushing ram stop motion, while piston press hollow cylinder inner sidewall, hollow Body can also have certain reaction force to piston, and under the action of hollow cylinder is to piston reaction force, be pressed down against piston, And under the action of the spring, drive sliding shoe to be slided in sliding sleeve, thus contacted with hollow cylinder inner sidewall in piston and When forming certain squeeze, plays the role of buffering, so that it is more to avoid pushing ram from being moved through, keep hollow cylinder over-stressed, thus Damage hollow cylinder.

3. a kind of air detection sampler provided by the invention is opened equipped with connector and at sample storage bag opening flanging Equipped with groove, and be equipped in the groove the sliding block that is slidably connected of the groove, enable the sliding block relative to institute It states groove to be slided, while not separating from groove again, by the way that second spring is arranged in the groove, the second spring exists The sliding block is oppressed on towards the groove top direction, so that the sliding block is under the action of without other external force along the groove Top-direction sliding；When sample storage bag opening push-in connector will be pushed, on the inside of the clamping seat of the sliding block and the clamping groove Wall contact so that the clamping groove inner sidewall to clamping seat apply an active force, due to the clamping groove inner sidewall with it is described The angle of connector inner wall is set as obtuse angle, thus the clamping groove inner sidewall active force that sliding block applies can be decomposed into it is flat Row and two active forces perpendicular to pushing direction push the clamping seat to described perpendicular to the active force of pushing direction Bottom portion of groove sliding, and when clamping seat enters clamping groove, seat is clamped under the active force of second spring, slot of the sliding block to groove It is slided at mouthful, and then clamping seat is arranged in clamping groove, so that sample storage bag is fixed in second one-way valve by connector. Conversely, as the clamping seat side is by close to being obliquely installed on the direction far from the sliding seat and close to the sliding seat The width of side be greater than far from the sliding seat side width, and the connector inner wall be equipped with the clamping seat cooperate and The clamping groove that inner sidewall is obliquely installed is clamped seat when pulling up sample storage bag to the side of the connector from second one-way valve One active force is applied to clamping groove inner sidewall, clamping groove has a reaction force to clamping seat, so that clamping seat is squeezed, in cunning Under the active force of the second spring of block bottom, slide the clamping seat to the bottom portion of groove, so that the clamping seat The clamping groove is left, so that clamping seat be taken out from clamping groove.

4. a kind of air detection sampler provided by the invention, be equipped with anti-scolite, the small winged insect with phototaxis fly into Anti- scolite, nature are driven by the dark in pipeline back to fly, if the small winged insect for not having phototaxis enters anti-scolite, winged insect It can be lost in siphunculus, while prevent it from moving on by partition and bending-type baffle, when anti-scolite memory has winged insect corpse, Corpse can be discharged outside anti-scolite by conical baffled, so that harmful substance, small winged insect be avoided to enter in sampler barrel and influence institute Extract air detection result inaccuracy.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the air detection sampler structure diagram provided in the first embodiment of the invention；

Fig. 2 is the structural schematic diagram of the sampler barrel in Fig. 1；

Fig. 3 is the structural schematic diagram of the buffer unit in Fig. 2；

Fig. 4 is the air detection sampler structure diagram provided in second of embodiment of the invention；

Fig. 5 is the connection schematic diagram in Fig. 4 between sample storage bag and the first connector；

Fig. 6 is the structural schematic diagram of the first connector in Fig. 5；

Fig. 7 is the structural schematic diagram of the second connector in Fig. 4；

Fig. 8 is the connection schematic diagram of the first connector and the second connector in Fig. 4；

Fig. 9 is the enlarged diagram in Fig. 8 at B；

Figure 10 is the air detection sampler structure diagram provided in the third embodiment of the invention；

Figure 11 is the structural schematic diagram of anti-scolite in Figure 10；

Figure 12 is top view shown in Figure 11.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only, It is not understood to indicate or imply relative importance.In addition, involved in invention described below different embodiments Technical characteristic can be combined with each other as long as they do not conflict with each other.

Embodiment 1

As shown in Figure 1 to Figure 3, a kind of air detection sampler provided by the invention, comprising:

Shell 1, is set as hollow structure；

Sampler barrel 2 is set in the shell 1, including one end be set as the hollow cylinder 2-1 of open ports, be disposed far from it is described The air inlet 2-2 of open ports one end, the gas outlet 2-3 for being disposed far from the open ports one side wall, the air inlet 2-2, outlet Mouth 2-3 is equipped with the first check valve 5-1；

Propulsion device 3, including being set to the piston being slidably connected in the hollow cylinder 2-1 and with the hollow cylinder 2-1 3-1, one end be fixed on the piston 3-1 far from an end face of air inlet 2-2 pushing ram 3-2, be set to the pushing ram 3-2 The driving device 3-3, the pushing ram 3-2 of the other end are set as worm screw, and the driving device 3-3 includes fixed by support plate 6 In the driving motor 3-31 in the shell 1 and be sheathed on the driving motor 3-31 output shaft and with the pushing ram The worm gear 3-32 of 3-2 engagement；

Sample storage unit is set in the shell 1, including one or more sample storage devices 4, each sample storage device 4 into Mouth end passes through pipeline respectively and is connected to the gas outlet 2-3, the outlet end corresponding one of the shell 1 and the sample storage device 4 Side wall is equipped with opening；

Control system, comprising:

Controller, for controlling the opening and closing of the driving motor；

Processor is connect with the controller；

Communication module is connected to the processor；

Server is connect with the communication module；

Intelligent terminal is connect with the server；

The working principle of above-mentioned technical proposal is as follows:

In use, only needing that sampler is manually placed in collection point, and the server is passed through by the intelligent terminal Control command is sent to the processor, the processor controls controller according to the control command, to control the drive Dynamic motor opens or closes, and the work of driving motor drives the rotation for being sheathed on worm gear in driving motor output shaft, and worm gear turns Dynamic that the worm screw engaged with worm gear is driven to move up and down, worm screw moves up and down sliding up and down with piston, to will carry out The air of required sampling is delivered in sample storage device by sampler barrel.

The invention has the benefit that

In use, need to only control driving motor work by operation intelligent terminal, to be sampled, when sampling, only need Manually sampler manually will be placed in collection point in advance, and sampling is remotely controlled by intelligent terminal, sampling personnel is avoided to need It to operate sampler in collection point always to be sampled, to reduce risk of the sampling personnel when taking sample.

In order to can move up and down pushing ram to moving up and down with piston, the preferred embodiment of the invention It is that one end mask of the support plate 6 is at the open ports of the hollow cylinder 2-1 and one side wall is fixed on the shell 1 Inner sidewall, the support plate 6 are equipped with through-hole with the pushing ram 3-2 corresponding position, it is fixed that first are coaxially provided in the through-hole It is equipped with the aperture cooperated with the pushing ram 3-2 among seat 6-1, the first fixing seat 6-1, the pushing ram 3-2 is arranged in In the aperture of the first fixing seat 6-1 and extend to the side far from the sampler barrel 2.

In order to which when pushing ram will move to the contact of hollow cylinder inner sidewall on piston, damper piston is in hollow cylinder The active force of side wall, the preferred embodiment of the invention are that the piston 3-1 includes in the hollow cylinder 2-1 and outer Diameter and the piston block 3-11 of hollow cylinder 2-1 inner sidewall diameter adaptation, that the piston block 3-11 is fixed in an end face is separate The propulsion is fixed in the other end buffer unit 3-12, the buffer unit 3-12 on an end face of the air inlet 2-2 On the one end bar 3-2.

In order to which when pushing ram will move to the contact of hollow cylinder inner sidewall on piston, damper piston is in hollow cylinder The active force of side wall, the preferred embodiment of the invention be, the buffer unit 3-12 includes that one end is set as open ports and another End be fixed on the piston block 3-11 far from an end face middle position of the air inlet 2-2 sliding sleeve 3-121, be set to it is described The sliding shoe 3-122 that is slidably connected in sliding sleeve 3-121 and with the sliding sleeve 3-121, it is fixed at close to the piston block 3-11 Mono- end face sliding sleeve 3-121 and the sliding shoe 3-122 between the first spring 3-123 and be fixed at the cunning The first stop collar 3-124 at 3-121 open ports end is covered, it is close that the sliding sleeve 3-121 is fixed in described one end first spring 3-123 On the inner sidewall of the piston block 3-11, the other end be fixed on the sliding shoe 3-122 close to one end of the piston block 3-11 On face, the sliding shoe 3-122 is equipped with annular groove 3-125, the annular close to an end face of the first stop collar 3-124 Be equipped in groove 3-125 by first sell 3-126 be fixed on the two sidewalls the annular groove 3-125 and with the annular groove 3- The same circle of sliding seat 3-127, the sliding seat 3-127 close to the one side of the annular groove 3-125 slot bottom of 125 cooperations Multiple first column 3-128, the peace that multiple first column 3-128 sell 3-126 with described first respectively are uniformly provided on week It is corresponding to fill hole, is arranged with second spring 3-129 outside each first column 3-128, the one end the second spring 3-129 is arranged In on the first column 3-128, the other end be fixed on the annular groove 3-125 slot bottom, the sliding shoe 3-122 is separate The one side wall end face of the second spring 3-129 is equipped with sealing ring mounting groove, is equipped with rubber ring in the sealing ring mounting groove The side wall of 3-130, the sliding seat 3-127 and each first column 3-128 corresponding position is crossed equipped with multiple first bar shapeds Hole 3-131, each first pin 3-126 sequentially pass through the annular groove 3-125 side wall and its corresponding first strip-shaped hole 3- 131 are fixed on the sliding seat 3-127 in the annular groove 3-125.

In the present embodiment, when driving pushing ram gradually to move up by the work of driving device, pushing ram is gradually moved up directly Simultaneously extruded hollow cylinder madial wall is contacted with hollow cylinder inner sidewall to piston, until when contacting to a certain extent between the two, Driving motor and pushing ram stop motion, while piston press hollow cylinder inner sidewall, hollow cylinder also can have one to piston Fixed reaction force, and under the action of hollow cylinder is to piston reaction force, it is pressed down against piston, and in the effect of spring Under, drive sliding shoe to be slided in sliding sleeve, thus when piston contacts and formed certain squeeze with hollow cylinder inner sidewall, Play the role of buffering, so that it is more to avoid pushing ram from being moved through, keep hollow cylinder over-stressed, damages hollow cylinder.Meanwhile institute The mounting hole that sliding shoe annular recess sidewall is equipped with the first pin is stated, first pin is successively arranged on the annular groove The first strip-shaped hole on mounting hole and sliding shoe, set between two centers of first strip-shaped hole it is at regular intervals, described first Pin is fixed on the mounting hole on the annular groove side wall, and the first strip-shaped hole on the sliding shoe allows sliding shoe solid It is slided up and down on the first fixed pin；When the first spring extruding sliding shoe, move sliding shoe to the first stop collar, until rubber Cushion rubber and first stop collar one end face contact, at this point, the first strip-shaped hole being arranged on sliding shoe allows sliding shoe to remote Second spring is moved and squeezed on direction from the first stop collar, and second spring plays slow when sliding shoe compresses the first stop collar The effect of punching avoids sliding shoe from being moved through more, keeps the first stop collar over-stressed, thus the first stop collar of damage.

In order to detect whether piston contacts with hollow cylinder, so that pushing ram be avoided to be moved through more and cause hollow The damage of cylinder, the preferred embodiment of the invention be, the piston 3-1 further includes that be fixed at the piston block 3-11 close Mono- end face air inlet 2-2 and the pressure sensitive device being electrically connected with the driving motor 3-31.

In the present embodiment, by pressure value suffered by pressure sensitive device real-time detection piston face, and pressure is examined Surveying the real-time pressure value that detects of device and preset pressure threshold value, (the preset pressure threshold value is according to actual needs or experimental result It is previously set) analysis comparison is carried out, thus to judge whether piston contacts with hollow cylinder inner sidewall, when real-time pressure value is greater than When default pressure threshold value, then illustrate that piston carries out extruded hollow cylinder madial wall, i.e. piston is contacted with hollow cylinder inner sidewall, at this time Feedback signal to control device, control device control driving motor stops working；Conversely, when real-time pressure difference is less than default pressure threshold When value, then illustrate piston and hollow cylinder inner sidewall not in contact with.

In order to avoid rainwater enters in sampler barrel, leading to extracted air and actual conditions, there are error, the present invention Preferred embodiment is that the air detection sampler further includes connecting with the first check valve 5-1 at the end the air inlet 2-2 Sampling head and cover at rain cover 7 above the sampling head, the sampling head is set as bell mouth shape, the sampling head Input end is equipped with grid.

In order to which when carrying out multiple repairing weld, without frequently replacement sample storage device, the preferred embodiment of the invention is, described Sample storage device 4 includes the multiple control valve 4-1 being connect by pipeline with the first check valve 5-1 of the gas outlet 2-3 and each institute State multiple second one-way valve 5-2 of the outlet end connection of control valve 4-1, the outlet end of input end and the second one-way valve 5-2 The input end of sample storage the bag 4-2, the sample storage bag 4-2 of connection are equipped with pressure gauge 4-3, and the outlet end of the sample storage bag 4-2 is equipped with Air outlet valve, the pressure gauge 4-3 and the control valve 4-1 are electrically connected.

In the present embodiment, multiple sample storage bags are provided with, the control condition of control device is in the light of actual conditions preset, wrapped It includes the opening of driving motor, stop and the open and close of control valve, the interval time between each sub-sampling.In use, by controlling The starting time, driving motor working time and corresponding multiple controls of driving motor are preset in the memory of device processed When the time that valve is successively opened, first the first task of driving motor, control device controls first control valve and opens, and will sample Air delivery in cylinder is into first sample storage bag, and the pressure gauge real-time detection sample storage bag by the way that sample storage bag input end is arranged in Interior pressure, (the preset pressure threshold value is according to practical need with preset pressure threshold value for the real-time pressure value that pressure gauge is detected Ask or experimental result be previously set) analysis comparison is carried out, thus to judge that whether air reaches required volume in sample storage bag, works as reality When pressure value when being greater than default pressure threshold value, then illustrate that air is excessive in sample storage bag, at this time feedback signal to control device, control dress It sets and closes control valve corresponding to the sample storage bag；Conversely, then illustrating in sample storage bag when real-time pressure difference is less than default pressure threshold value Air is too small, does not reach necessary requirement.

Embodiment 2

The place same as Example 1 of embodiment 2 is not repeating, referring to fig. 4 to Fig. 9, the difference is that, in order to more square Just, sample storage device is easily replaced, the preferred embodiment of the invention is, the outlet end of the second one-way valve 5-2 is equipped with the One pipeline 5-21, the air detection sampler further include the first connection that one end is fixed at the sample storage bag 4-2 input end Part 8-1 and one end are fixed at the second connector 8-2 on the pipeline of the outlet end the second one-way valve 5-2, and described second Connector 8-2, the first connector 8-1 and the second connector 8-2 clamping.

In order to avoid improving the leakproofness between the first and second connector, the preferred embodiment of the invention is described first Connector 8-1 includes that one end is fixed at the first round tube 8-11 of the sample storage bag 4-2 input end, is fixed on first round tube The flanging 8-12 of the one end 8-11, the flanging 8-12 lateral wall is equipped with cricoid groove 8-13, in the groove 8-13 slot bottom Between multiple first spring mounting hole 8-14 are uniformly provided on same circumference, be equipped in the groove 8-13 in the groove 8-13 The sliding block 8-15 of side walls connection, the bottom the sliding block 8-15 are equipped with third spring 8-16, described one end third spring 8-16 It is fixed in the first spring mounting hole 8-14, the other end is fixed on the sliding block 8-15 close to the groove 8-13 slot bottom One end face, the section of the sliding block 8-15 are set as T-type, and the sliding block 8-15 includes size and the groove 8-13 size fit The sliding seat 8-151 and clamping block 8- being fixed on side of the sliding seat 8-151 far from the third spring 8-16 152, the side the clamping block 8-152 is by close to being obliquely installed on the direction far from the sliding seat 8-151 and close to described The width of the side sliding seat 8-151 is greater than the width far from the side the sliding seat 8-151, sets at the notch of the groove 8-13 There is the limit plate 8-17 of size Yu the groove 8-13 size fit, the middle position the limit plate 8-17 is equipped with and the clamping The through-hole of block 8-152 adaptation, the first connector 8-1 are equipped with cricoid boss far from the one side wall of the first round tube 8-11 8-18。

In order to avoid improving the leakproofness between the first and second connector, the preferred embodiment of the invention is described second Connector 8-2 include one end be fixed on the pipeline of the outlet end the second one-way valve 5-2 the second round tube 8-21, be fixed on institute State the clamping seat 8-22 of the second round tube 8-21, the clamping middle position seat 8-22 is equipped with stepped hole, the step bore dia by The separate direction to close to the second round tube 8-21 is gradually reduced, the first step hole far from described one end second round tube 8-21 The internal diameter of 8-231 is adapted to the flanging 8-12 outer diameter, in the second step hole 8-232 of described one end second round tube 8-21 Diameter is adapted to the second round tube 8-21 outer diameter, and the first step hole 8-231 inner sidewall is equipped with matches with the clamping block 8-152 The clamping groove 8-24, the first step hole 8-231 of conjunction are equipped with annular recess close to the one side wall of the second step hole 8-232 8-25 is uniformly provided with multiple second spring mounting hole 8-26, the ring on same circumference among the annular recess 8-25 slot bottom Be equipped in shape groove 8-25 by multiple second pins 8-3 be fixed on the annular recess 8-25 it is interior and with the annular recess 8-25 Side of the size compatible second fixing seat 8-27, the second fixing seat 8-27 far from the second spring mounting hole 8-26 Face is equipped with the limited block 8-271 that diameter is less than the second fixing seat 8-27 diameter, is equipped at the annular recess 8-25 notch Offered among second stop collar 8-31, the second stop collar 8-31 of size and the annular recess 8-25 size fit with The through-hole of the limited block 8-271 cooperation, the limited block 8-271 are arranged in the second stop collar 8-31 and extend to described On the outside of annular recess 8-25, the limited block 8-271 is equipped with far from the one side wall end face of the second spring mounting hole 8-26 Sealing ring mounting groove, the sealing ring mounting groove is interior to be equipped with sealing ring 8-28, and the second fixing seat 8-27 is close to described second Multiple second column 8-272, multiple second columns are uniformly provided on the same circumference of the one side wall of spring mounting hole 8-26 8-272 is corresponding with the second pin mounting hole of 8-3 respectively, and the 4th spring 8- is arranged with outside each second column 8-272 The one end 29, the 4th spring 8-29 is sheathed on the second column 8-272, the other end is fixed on the second spring installation In the 8-26 of hole, the side wall of the second fixing seat 8-27 and each second column 8-272 corresponding position is crossed equipped with multiple the Two strip-shaped hole 8-30, each second pin 8-3 sequentially pass through the annular recess 8-25 side wall and its corresponding second strip-shaped hole The second fixing seat 8-27 is fixed in the annular recess 8-25 by 8-30.

In the present embodiment, the elastic force of the third spring is greater than the elastic force of the 4th spring, the flanging of the first connector Place opens up fluted, and is equipped with the sliding block that is slidably connected with the groove in the groove, enables the sliding block opposite It is slided in the groove, while not being separated from groove again, by the way that third spring, the third bullet are arranged in the groove Spring is towards the sliding block is oppressed on the groove top direction, so that the sliding block is under the action of without other external force along described The sliding of groove top direction.The clamping block side is by close to being obliquely installed on the direction far from the sliding seat and close to institute State sliding seat side width be greater than far from the sliding seat side width, and the second connector inner wall be equipped with it is described The clamping groove that clamping block cooperation and inner sidewall are obliquely installed, therefore clamping block one end of the sliding block is embeddable to second company It can take out inside the clamping groove of fitting and from clamping groove.When one end that the first connector is equipped with to flanging is pushed into the second connector Clamping seat when, the clamping block of the sliding block is contacted with the clamping groove inner sidewall, so that the clamping groove inner sidewall is to clamping Block applies an active force, since the angle of the clamping groove inner sidewall and the connector inner wall is set as obtuse angle, thus institute Two effects parallel and perpendicular to pushing direction can be decomposed into the active force that sliding block applies by stating clamping groove inner sidewall Power pushes the clamping block to slide to the bottom portion of groove, and enters clamping in clamping block perpendicular to the active force of pushing direction When slot, for clamping block under the active force of third spring, clamping block is arranged in clamping to sliding at the notch of groove by sliding block In slot, so that the first connector of sample storage bag input end is fixed on the second connector of second one-way valve outlet end.Conversely, Since the clamping block side is by close to being obliquely installed on the direction far from the sliding seat and close to the sliding seat side Width be greater than far from the sliding seat side width, and the second connector inner wall be equipped with the clamping block cooperation and The clamping groove that inner sidewall is obliquely installed, when pulling up sample storage bag to the side of first connector from the second connector, card It connecing block and one active force is applied to clamping groove inner sidewall, clamping groove has a reaction force to clamping block, so that clamping block is squeezed, Under the active force of the third spring of slider bottom, slide the clamping block to the bottom portion of groove, so that the card It connects block and leaves the clamping groove, so that clamping seat be taken out from clamping groove.

Meanwhile the annular recess side wall in second connector is equipped with the mounting hole of the second pin, second pin is successively The second strip-shaped hole on mounting hole and the second fixing seat being arranged on the annular recess, two centers of second strip-shaped hole Between set it is at regular intervals, it is described second pin be fixed on the mounting hole on the annular recess side wall, second fixing seat On the second strip-shaped hole slide up and down the second fixing seat on fixed second pin；When clamping block is pushed into clamping groove When, the cricoid boss of the first connector one side wall follows the first connector to move on the direction of the second connector, directly When being connected in clamping groove to clamping block, the boss is contacted with the sealing ring in second fixing seat, at this point, the second fixing seat Second strip-shaped hole of upper setting allows the second fixing seat to move and squeeze the 4th spring on the direction far from boss, squeezes the Come into full contact with sealing ring with raised head face by the reaction force of the 4th spring while four springs, to improve the first connection Leakproofness between part and the second connector.

Embodiment 3

The place same as Example 1 of embodiment 3 is not repeating, referring to Figure 10 to Figure 12, the difference is that, in order to avoid Small winged insect, sundries are fallen in the pipeline of air inlet by air inlet, and block the air inlet of sampler barrel, currently preferred reality The scheme of applying be further include that one end is connect and the bend pipe 10- of inverted u-shaped setting with the first check valve 5-1 at the air inlet 2-2 1, be fixed at the anti-scolite 10-2 of the bend pipe 10-1 other end, the anti-scolite 10-2 include be set as hollow type and one end with The siphunculus 10-21 of the bend pipe 10-1 connection, be located in the siphunculus 10-21 and the intermediate partition 10-22 for being equipped with through-hole, Diversity is set to the partition 10-22 close to the side the bend pipe 10-1 and multiple bending shapes gear of circular array arrangement setting Plate 10-23 and by multiple connecting rod 10-24 be fixed at the partition 10-22 far from the side the bend pipe 10-1 and in cone The conical baffled 10-25 of shape setting, the outer diameter of the conical baffled 10-25 is by close on the direction far from the bend pipe 10-1 Setting incremented by successively.

In the present embodiment, air inlet is arranged straight down, since outside cause causes it to fall when can avoid small winged insect flight It drops down onto air inlet, accumulation for a long time will cause the blocking of air inlet pipeline, while the bending shape baffle of diversity setting And partition, make formation one structure for being similar to labyrinth disc in anti-scolite that can lose it when small winged insect is entered in anti-scolite Direction, baffle and bending shape baffle can prevent small winged insect from entering in anti-scolite, while the air inlet being vertically arranged can fly small It after worm enters anti-scolite death, is influenced directly to fall on conical baffled by its gravity, the baffle of taper setting can fly small Small winged insect is discharged outside anti-scolite when worm falls；The bending-type baffle of diversity setting simultaneously, can block except the impurity in air, To avoid small winged insect, the impurity in air enter in the pipeline of air inlet, and block the air inlet of sampler barrel.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (9)

1. a kind of air detection sampler characterized by comprising

Shell (1), is set as hollow structure；

Sampler barrel (2) is set in the shell (1), is set as the hollow cylinder (2-1) of open ports including one end, is disposed far from institute It states the air inlet (2-2) of open ports one end, be disposed far from the gas outlet (2-3) of the open ports one side wall, the air inlet (2- 2), gas outlet (2-3) is equipped with the first check valve (5-1)；

Propulsion device (3), including being set to the work being slidably connected in the hollow cylinder (2-1) and with the hollow cylinder (2-1) It fills in (3-1), the pushing ram (3-2) that one end is fixed on an end face of the piston (3-1) separate air inlet (2-2), be set to institute The driving device (3-3) of pushing ram (3-2) other end is stated, the pushing ram (3-2) is set as worm screw, the driving device (3-3) Including the driving motor (3-31) being fixed in the shell (1) by support plate (6) and it is sheathed on the driving motor The worm gear (3-32) engaged on (3-31) output shaft and with the pushing ram (3-2)；

Sample storage unit is set in the shell (1), including one or more sample storage devices (4), each sample storage device (4) Input end passes through pipeline respectively and is connected to the gas outlet (2-3), the outlet end of the shell (1) and the sample storage device (4) Corresponding one side wall is equipped with opening.

2. air detection sampler according to claim 1, which is characterized in that one end mask of the support plate (6) is set At the open ports of the hollow cylinder (2-1) and one side wall is fixed on the shell (1) inner sidewall, the support plate (6) with Pushing ram (3-2) corresponding position is equipped with through-hole, is coaxially provided with the first fixing seat (6-1) in the through-hole, and described first is solid The aperture cooperated with the pushing ram (3-2) is equipped among reservation (6-1), it is solid that the pushing ram (3-2) is arranged in described first In the aperture of reservation (6-1) and extend to the side far from the sampler barrel (2).

3. air detection sampler according to claim 1, which is characterized in that the piston (3-1) includes set on described In hollow cylinder (2-1) and outer diameter and the piston block (3-11) of the hollow cylinder (2-1) inner sidewall diameter adaptation, an end face is consolidated Buffer unit (3-12) on the end face of the piston block (3-11) far from the air inlet (2-2), the buffering dress The other end (3-12) is set to be fixed on the one end the pushing ram (3-2).

4. air detection sampler according to claim 3, which is characterized in that the buffer unit (3-12) includes one end It is set as open ports and the other end is fixed on the piston block (3-11) far from an end face middle position of the air inlet (2-2) Sliding sleeve (3-121), be set in the sliding sleeve (3-121) and the sliding shoe (3- that is slidably connected with the sliding sleeve (3-121) 122), be fixed at close to the piston block (3-11) the sliding sleeve (3-121) end face and the sliding shoe (3-122) it Between the first spring (3-123) and be fixed at first stop collar (3-124) at the sliding sleeve (3-121) open ports end, institute The one end the first spring (3-123) is stated to be fixed on the inner sidewall of the sliding sleeve (3-121) close the piston block (3-11), is another The sliding shoe (3-122) is fixed on an end face of the piston block (3-11) in end, and the sliding shoe (3-122) is close One end face of first stop collar (3-124) is equipped with annular groove (3-125), is equipped in the annular groove (3-125) logical It crosses the first pin (3-126) and is fixed on the annular groove two sidewalls (3-125) and the cunning with the annular groove (3-125) cooperation Dynamic seat (3-127), the sliding seat (3-127) is on the same circumference of the one side of the annular groove (3-125) slot bottom Multiple first columns (3-128) are uniformly provided with, multiple first columns (3-128) sell (3-126) with described first respectively Mounting hole is corresponding, and each first column (3-128) is arranged with second spring (3-129) outside, the second spring (3-129) One end is sheathed on first column (3-128), the other end is fixed on the annular groove (3-125) slot bottom, the cunning Motion block (3-122) is equipped with sealing ring mounting groove, the sealing ring peace far from the one side wall end face of the second spring (3-129) It is equipped with rubber ring (3-130) in tankage, the side of the sliding seat (3-127) and each first column (3-128) corresponding position Wall is crossed equipped with multiple first strip-shaped holes (3-131), and each first pin (3-126) sequentially passes through the annular groove (3- 125) sliding seat (3-127) is fixed on the annular groove (3- by side wall and its corresponding first strip-shaped hole (3-131) 125) in.

5. air detection sampler according to claim 1, which is characterized in that the sample storage device (4) includes passing through pipe The multiple control valves (4-1) and each control valve (4-1) that road is connect with first check valve (5-1) of the gas outlet (2-3) Multiple second one-way valves (5-2) of outlet end connection, the storage that is connect with the outlet end of the second one-way valve (5-2) of input end The input end of sample bag (4-2), the sample storage bag (4-2) is equipped with pressure gauge (4-3), and the outlet end of the sample storage bag (4-2) is equipped with Air outlet valve, the pressure gauge (4-3) and the control valve (4-1) are electrically connected.

6. air detection sampler according to claim 5, which is characterized in that the outlet of the second one-way valve (5-2) End is equipped with the first pipeline (5-21), and the air detection sampler further includes that one end is fixed at sample storage bag (4-2) import First connector (8-1) and one end at end are fixed at the second company on the pipeline of the outlet end the second one-way valve (5-2) Fitting (8-2), second connector (8-2), first connector (8-1) and second connector (8-2) are clamped.

7. air detection sampler according to claim 6, which is characterized in that first connector (8-1) includes one End is fixed at the first round tube (8-11) of sample storage bag (4-2) input end, is fixed on described first round tube (8-11) one end Flanging (8-12), flanging (8-12) lateral wall is equipped with cricoid groove (8-13), in groove (8-13) slot bottom Between multiple first spring mounting holes (8-14) are uniformly provided on same circumference, be equipped in the groove (8-13) and the groove The sliding block (8-15) that (8-13) inner sidewall is slidably connected, the sliding block bottom (8-15) are equipped with third spring (8-16), and described the The one end three springs (8-16) is fixed in first spring mounting hole (8-14), the other end is fixed on the sliding block (8-15) and leans on One end face of nearly groove (8-13) slot bottom, the section of the sliding block (8-15) are set as T-type, and the sliding block (8-15) includes ruler Very little sliding seat (8-151) with the groove (8-13) size fit and the sliding seat (8-151) is fixed at far from institute The clamping block (8-152) on the side of third spring (8-16) is stated, the clamping block side (8-152) is by close to far from described It is obliquely installed on the direction of sliding seat (8-151) and is greater than close to the width of the side the sliding seat (8-151) far from the cunning The width of the side seat (8-151) is moved, is equipped with size and the groove (8-13) size fit at the notch of the groove (8-13) Limit plate (8-17), the limit plate middle position (8-17) is equipped with the through-hole that is adapted to the clamping block (8-152), described First connector (8-1) is equipped with cricoid boss (8-18) far from the one side wall of first round tube (8-11).

8. air detection sampler according to claim 6, which is characterized in that second connector (8-2) includes one It holds the second round tube (8-21) being fixed on the pipeline of the outlet end the second one-way valve (5-2), be fixed on second round tube The clamping seat (8-22) of (8-21), the clamping seat middle position (8-22) are equipped with stepped hole, and the step bore dia is by separate It is gradually reduced to the direction close to second round tube (8-21), the first step hole far from described second round tube (8-21) one end The internal diameter of (8-231) is adapted to the flanging (8-12) outer diameter, close to the second step hole of described second round tube (8-21) one end (8-232) internal diameter is adapted to the second round tube (8-21) outer diameter, first step hole (8-231) inner sidewall be equipped with it is described The clamping groove (8-24) of clamping block (8-152) cooperation, the first step hole (8-231) is close to the second step hole (8- 232) one side wall is equipped with annular recess (8-25), is uniformly provided on the same circumference in annular recess (8-25) the slot bottom centre more A second spring mounting hole (8-26), the annular recess (8-25) are interior described equipped with being fixed on by multiple second pins (8-3) In annular recess (8-25) and the second fixing seat (8-27) compatible with the annular recess (8-25) size, described second is solid Reservation (8-27) is equipped with diameter far from the one side of the second spring mounting hole (8-26) and is less than the second fixing seat (8- 27) limited block (8-271) of diameter is equipped with size and the annular recess (8-25) ruler at annular recess (8-25) notch The second stop collar (8-31) of very little adaptation, intermediate offer of second stop collar (8-31) are matched with the limited block (8-271) The through-hole of conjunction, the limited block (8-271) are arranged in second stop collar (8-31) and extend to the annular recess (8- 25) outside, the limited block (8-271) are equipped with sealing ring far from the one side wall end face of the second spring mounting hole (8-26) Mounting groove, the sealing ring mounting groove is interior to be equipped with sealing ring (8-28), and second fixing seat (8-27) is close to second bullet Multiple second columns (8-272) are uniformly provided on the same circumference of the one side wall of spring mounting hole (8-26), multiple described second is vertical Column (8-272) is corresponding with the second pin mounting hole of (8-3) respectively, and each second column (8-272) is arranged with the outside Four springs (8-29), described 4th spring (8-29) one end is sheathed on second column (8-272), the other end is fixed on institute It states in second spring mounting hole (8-26), second fixing seat (8-27) and each second column (8-272) corresponding position Side wall cross equipped with multiple second strip-shaped holes (8-30), each second pin (8-3) sequentially passes through the annular recess (8- 25) second fixing seat (8-27) is fixed on the annular recess (8- by side wall and its corresponding second strip-shaped hole (8-30) 25) in.

9. air detection sampler according to claim 1, which is characterized in that further include one end and the air inlet (2- 2) the first check valve (5-1) connection at place and the bend pipe (10-1) of inverted u-shaped setting, to be fixed at the bend pipe (10-1) another The anti-scolite (10-2) at end, the anti-scolite (10-2) include being set as hollow type and one end is connect with the bend pipe (10-1) leads to Pipe (10-21), is set to the partition at the same partition (10-22) for being located in the siphunculus (10-21) and centre equipped with through-hole The multiple bending-type baffles (10-23) and pass through that the close bend pipe side (10-1) (10-22) and circular array are arranged Multiple connecting rods (10-24) are fixed at the cone of the partition (10-22) far from the bend pipe side (10-1) and tapered setting Shape baffle (10-25), the outer diameter of conical baffled (10-25) by close on the direction far from the bend pipe (10-1) successively It is incremented by setting.