CN112729697B

CN112729697B - Microbial flora sampler

Info

Publication number: CN112729697B
Application number: CN202110063665.7A
Authority: CN
Inventors: 余丽珊
Original assignee: Shanghai Qigan Food Co ltd
Current assignee: Shanghai Qigan Food Co.,Ltd.
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-12-28
Anticipated expiration: 2041-01-18
Also published as: CN112729697A

Abstract

The invention discloses a microbial flora sampler, which comprises a main box body, wherein a connecting cavity with a forward opening is arranged in the main box body, the rear end wall of the connecting cavity is fixedly connected with a connecting pipe, the outer surface of the connecting pipe is connected with an air pump pipe in a sliding fit manner, the lower end surface of the connecting cavity is fixedly connected with a positioning thin rod positioned on the right side of the air pump pipe, the upper side of the connecting cavity is communicated with a lifting cavity, a lifting slide block is connected between the left end wall and the right end wall of the lifting cavity in a sliding fit manner, a lifting spring is fixedly connected between the upper end surface of the lifting slide block and the upper end wall of the lifting cavity, the flow regulation speed is improved through the transmission of a driving large gear and a driven small gear, the slow regulation of the flow is realized through the transmission of the driving small gear and the driven large gear, then the position height of a rotor can more accurately reach a standard value through an infrared sensor, and the air pump pipe is bent under the action of the positioning thin rod and a rotating plate, the sampler is calibrated later, and the workload of related personnel is reduced.

Description

Microbial flora sampler

Technical Field

The invention relates to the technical field related to microorganism sampling, in particular to a microorganism flora sampler.

Background

At present, a sampler generally needs to check the flow of a microorganism sampler before using the microorganism sampler, the check process mainly comprises manual operation, the work efficiency of the sampler is reduced, the sampling personnel needs to adjust the flow to a standard value in the flow check process, the accuracy of manual adjustment is not high, meanwhile, the sampling personnel needs to bend an air pump pipe and observe the change of a rotor through naked eyes to judge whether the tightness of the sampler is good, and the workload of the sampling personnel is increased.

Disclosure of Invention

The invention aims to provide a microbial flora sampler, and solves the problems of low manual flow checking efficiency and accuracy of the microbial sampler.

The invention is realized by the following technical scheme.

The invention relates to a microbial flora sampler, which comprises a main box body, wherein a connecting cavity with a forward opening is arranged in the main box body, the rear end wall of the connecting cavity is fixedly connected with a connecting pipe, the outer surface of the connecting pipe is connected with an air pump pipe in a sliding fit manner, the lower end surface of the connecting cavity is fixedly connected with a positioning slender rod positioned on the right side of the air pump pipe, the upper side of the connecting cavity is communicated with a lifting cavity, a lifting slider is connected between the left end wall and the right end wall of the lifting cavity in a sliding fit manner, a lifting spring is fixedly connected between the upper end surface of the lifting slider and the upper end wall of the lifting cavity, a closed gear cavity with a leftward opening is arranged in the lifting slider, a rotary disc shaft which extends upwards into the closed gear cavity and downwards into the lifting cavity is connected in a rotating fit manner in the lower end wall of the closed gear cavity, and a rotary disc which is fixedly connected with the rotary disc shaft is arranged in the lifting cavity, the terminal surface fixedly connected with rotor plate under the carousel, be equipped with in the closed gear chamber with carousel axle fixed connection's carousel axle gear, closed gear chamber lower extreme wall internal rotation cooperation be connected with upwards extend to the closed driven tooth of closed gear intracavity, closed gear intracavity be equipped with closed driven tooth fixed connection's closed driven tooth, closed driven tooth with carousel axle gear engagement, magnet is used in lift slider up end fixedly connected with lift, lift chamber rear side intercommunication is equipped with the centrifugal wheel chamber, centrifugal wheel chamber downside is equipped with and is located the belt chamber is used in the centrifugation of lift chamber rear side, belt chamber downside is used in the centrifugation is equipped with and is located the closed belt chamber of lift chamber rear side, lift chamber rear side intercommunication is equipped with and is located closed driving tooth of closed belt chamber downside.

Preferably, a servo motor which is located at the rear side of the lifting cavity and is fixedly connected with the main box body is arranged on the upper side of the centrifugal belt cavity, a wire wheel cavity is arranged on the lower side of the connecting cavity, a speed change gear cavity which is located at the rear lower side of the connecting cavity is arranged on the rear side of the wire wheel cavity, a bending gear cavity is arranged on the rear side of the speed change gear cavity, a servo motor shaft which extends downwards and penetrates through the centrifugal belt cavity to the bending gear cavity is fixedly connected with the lower end face of the servo motor, a centrifugal main belt wheel which is fixedly connected with the servo motor shaft is arranged in the centrifugal belt cavity, a centrifugal wheel shaft which extends upwards into the centrifugal wheel cavity and downwards extends into the centrifugal belt cavity is connected with the upper end wall of the centrifugal belt cavity in a rotating fit manner, a centrifugal secondary belt wheel which is fixedly connected with the centrifugal wheel shaft is arranged in the centrifugal belt cavity, and a centrifugal belt is connected between the centrifugal secondary belt wheel and the centrifugal main belt wheel in a power fit manner, the centrifugal wheel is characterized in that a centrifugal wheel fixedly connected with the centrifugal wheel shaft is arranged in the centrifugal wheel cavity, a plurality of centrifugal magnetic block cavities distributed circumferentially are arranged in the centrifugal wheel, centrifugal magnetic blocks are connected to the side walls of the centrifugal magnetic block cavities in a sliding fit mode, and magnetic block springs are fixedly connected between the inner end faces of the centrifugal magnetic blocks and the inner end walls of the centrifugal magnetic block cavities.

Preferably, a closed driving shaft which extends upwards into the closed belt cavity and extends downwards into the closed driving tooth is connected to the upper end wall of the closed driving tooth in a rotationally matched manner, a closed driving tooth which is fixedly connected with the closed driving shaft is arranged in the closed driving tooth, a closed secondary belt wheel which is fixedly connected with the closed driving shaft is arranged in the closed belt cavity, a bending driven shaft which extends upwards into the closed belt cavity and extends downwards into the bending gear cavity is connected to the lower end wall of the closed belt cavity in a rotationally matched manner, a closed primary belt wheel which is fixedly connected with the bending driven shaft is arranged in the closed belt cavity, a closed belt for sealing is connected between the closed primary belt wheel and the closed secondary belt wheel in a power matched manner, a bending secondary driving tooth which is fixedly connected with the bending driven shaft is arranged in the bending gear cavity, and a clutch transmission shaft which extends downwards into the bending gear cavity is connected to the inner spline of the servo motor in a matched manner, the utility model discloses a clutch magnetic sleeve, including bending gear, clutch transmission shaft, clutch transmission.

Preferably, a clutch spring is fixedly connected between the upper end face of the clutch electromagnet and the lower end face of the clutch magnetic sleeve, a speed change driving shaft which extends forwards into the speed change gear cavity and extends backwards into the bending gear cavity is connected to the front end wall of the bending gear cavity in a rotationally matched manner, a clutch driven bevel gear which is fixedly connected with the speed change driving shaft is arranged in the bending gear cavity, a driving pinion which is fixedly connected with the speed change driving shaft is arranged in the speed change gear cavity, a driving large gear which is fixedly connected with the speed change driving shaft and is positioned at the front side of the driving pinion is arranged in the speed change gear cavity, a rotary shaft gear cavity is arranged at the lower side of the wire wheel cavity, a speed change driven shaft which extends forwards through the speed change gear cavity to the rotary shaft gear cavity is connected to the rear end wall of the speed change gear cavity in a rotationally matched manner, and a driven large gear which is connected with the speed change driven shaft in a rotationally matched manner is arranged in the speed change gear cavity, the transmission gear intracavity be equipped with the variable speed driven shaft normal running fit is connected and is located the driven pinion of driven gear wheel front side, driven gear wheel with the pinion engagement of initiative, driven pinion with the gear wheel engagement of initiative, driven gear wheel with be equipped with between the driven pinion with the synchronizer that variable speed driven shaft spline fit is connected, the running fit is connected with the shift fork sleeve on the synchronizer.

Preferably, a speed change magnet cavity is communicated with the lower side of the speed change gear cavity, a shifting fork extending downwards into the speed change magnet cavity is fixedly connected to the lower end face of the shifting fork sleeve, a speed change magnet is fixedly connected to the lower end of the inner side of the left end face of the shifting fork, a speed change spring is fixedly connected between the right end face of the shifting fork and the right end wall of the speed change magnet cavity, a speed change electromagnet is fixedly connected to the inner side of the left end wall of the speed change magnet cavity, a check movable shaft extending forwards into the rotating shaft gear cavity is connected in a spline fit manner in the speed change driven shaft, a check driving tooth fixedly connected with the check movable shaft is arranged in the rotating shaft gear cavity, a movable shaft sleeve is connected to the front end of the check movable shaft in a rotating fit manner, a rotating shaft extending forwards through the rotating shaft gear cavity to the outside is connected to the rear end wall of the rotating shaft gear cavity in a rotating fit manner, the size that the sample thief flow can be adjusted to the axis of rotation, it observes the chamber to connect the chamber right side to be equipped with, it is equipped with the rotor to observe the intracavity, the size of current flow can be shown to the rotor, the terminal fixedly connected with knob of axis of rotation front side, be equipped with in the axis of rotation gear intracavity with axis of rotation fixed connection's rotating shaft gear, line wheel cavity rear end wall normal running fit is connected with and extends forward to line wheel intracavity's line axle, line wheel intracavity be equipped with line wheel of line wheel axle fixed connection.

Preferably, the line wheel intracavity be equipped with line wheel axle fixed connection just is located the small line wheel of big line wheel front side, small line wheel with fixedly connected with sleeve stay cord between the preceding terminal surface of loose axle sleeve, big line wheel with fixedly connected with transmission stay cord between the lifting slide up end, terminal surface fixedly connected with is located before the main tank body the warning light of observation chamber upside, survey chamber upper end wall fixedly connected with infrared sensor.

The invention has the beneficial effects that: according to the invention, the speed of flow regulation is improved through the transmission of the driving large gear and the driven small gear, the slow regulation of flow is realized through the transmission of the driving small gear and the driven large gear, then the position height of the rotor can more accurately reach a standard value through the infrared sensor, the air pump pipe is bent under the action of the positioning thin rod and the rotating plate for subsequent calibration of the sampler, the workload of related personnel is reduced, the position change of the rotor at a zero point is detected through the infrared sensor, thus the automatic check of the sampler is realized, and the working efficiency of the sampling personnel is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic sectional view along the direction A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view along the direction B-B in FIG. 2 according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the embodiment of the present invention at C in FIG. 2;

FIG. 5 is an enlarged schematic view of the embodiment of the present invention at D in FIG. 2;

FIG. 6 is an enlarged schematic view of the embodiment of the present invention shown in FIG. 2 at E.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

With reference to fig. 1-6, the sampler for microbial flora comprises a main box 10, a connection cavity 17 with a forward opening is arranged in the main box 10, a connection pipe 18 is fixedly connected to the rear end wall of the connection cavity 17, an air pump pipe 19 is connected to the outer surface of the connection pipe 18 in a sliding fit manner, a positioning slender rod 11 positioned on the right side of the air pump pipe 19 is fixedly connected to the lower end surface of the connection cavity 17, a lifting cavity 36 is communicated with the upper side of the connection cavity 17, a lifting slider 23 is connected between the left end wall and the right end wall of the lifting cavity 36 in a sliding fit manner, a lifting spring 27 is fixedly connected between the upper end surface of the lifting slider 23 and the upper end wall of the lifting cavity 36, a closed gear cavity 38 with a leftward opening is arranged in the lifting slider 23, a rotary plate shaft 26 which extends upwards into the closed gear cavity 38 and downwards into the lifting cavity 36 is connected to the lower end wall of the closed gear cavity 38 in a rotating fit manner, a rotary disc 25 fixedly connected with the rotary disc shaft 26 is arranged in the lifting cavity 36, a rotating plate 24 is fixedly connected with the lower end face of the rotary disc 25, a rotary disc shaft gear 39 fixedly connected with the rotary disc shaft 26 is arranged in the closed gear cavity 38, a closed driven gear 40 extending upwards into the closed gear cavity 38 is connected in the lower end wall of the closed gear cavity 38 in a rotating fit manner, a closed driven gear 35 fixedly connected with the closed driven gear 40 is arranged in the closed gear cavity 38, the closed driven gear 35 is meshed with the rotary disc shaft gear 39, a lifting magnet 37 is fixedly connected with the upper end face of the lifting slider 23, a centrifugal wheel cavity 53 is communicated with the rear side of the lifting cavity 36, a centrifugal belt cavity 50 located at the rear side of the lifting cavity 36 is arranged on the lower side of the centrifugal wheel cavity 53, a closed belt cavity 46 located at the rear side of the lifting cavity 36 is arranged on the lower side of the centrifugal belt cavity 50, the rear side of the lifting cavity 36 is communicated with a closed driving tooth 44 positioned at the lower side of the closed belt cavity 46.

Beneficially, a servo motor 51 located at the rear side of the lifting cavity 36 and fixedly connected to the main box 10 is disposed on the upper side of the centrifugal belt cavity 50, a pulley cavity 78 is disposed on the lower side of the connecting cavity 17, a speed change gear cavity 74 located at the rear lower side of the connecting cavity 17 is disposed on the rear side of the pulley cavity 78, a bending gear cavity 55 is disposed on the rear side of the speed change gear cavity 74, a servo motor shaft 48 extending downward through the centrifugal belt cavity 50 to the bending gear cavity 55 is fixedly connected to the lower end face of the servo motor 51, a centrifugal main pulley 49 fixedly connected to the servo motor shaft 48 is disposed in the centrifugal belt cavity 50, a centrifugal wheel shaft 30 extending upward into the centrifugal wheel cavity 53 and downward into the centrifugal belt cavity 50 is rotatably connected to the upper end wall of the centrifugal belt cavity 50 in a matching manner, a centrifugal secondary pulley 29 fixedly connected to the centrifugal wheel shaft 30 is disposed in the centrifugal belt cavity 50, a belt 52 for centrifugation is connected between the centrifugal secondary belt wheel 29 and the centrifugal primary belt wheel 49 in a power fit manner, a centrifugal wheel 31 fixedly connected with the centrifugal wheel shaft 30 is arranged in a centrifugal wheel cavity 53, a plurality of centrifugal magnet cavities 32 are circumferentially distributed and arranged in the centrifugal wheel 31, centrifugal magnets 34 are connected to the side walls of the centrifugal magnet cavities 32 in a sliding fit manner, and magnet springs 33 are fixedly connected between the inner end surfaces of the centrifugal magnets 34 and the inner end walls of the centrifugal magnet cavities 32.

Beneficially, a closed driving shaft 42 extending upwards into the closed belt cavity 46 and downwards into the closed driving tooth 44 is connected to the upper end wall of the closed driving tooth 44 in a rotationally matched manner, a closed driving tooth 43 fixedly connected with the closed driving shaft 42 is arranged in the closed driving tooth 44, a closed secondary pulley 41 fixedly connected with the closed driving shaft 42 is arranged in the closed belt cavity 46, a bending driven shaft 77 extending upwards into the closed belt cavity 46 and downwards into the bending gear cavity 55 is connected to the lower end wall of the closed belt cavity 46 in a rotationally matched manner, a closed primary pulley 47 fixedly connected with the bending driven shaft 77 is arranged in the closed belt cavity 46, a closed belt 45 is connected between the closed primary pulley 47 and the closed secondary pulley 41 in a rotationally matched manner, and a bending driven tooth 54 fixedly connected with the bending driven shaft 77 is arranged in the bending gear cavity 55, the servo motor shaft 48 internal spline cooperation is connected to downwardly extending to the clutch transmission shaft 57 in the gear chamber 55 of bending, be equipped with in the gear chamber 55 of bending with clutch transmission shaft 57 fixed connection's the initiative tooth 56 of bending, be equipped with in the gear chamber 55 of bending with clutch transmission shaft 57 fixed connection just is located the clutch owner awl tooth 58 of the initiative tooth 56 downside of bending, the terminal normal running fit of clutch transmission shaft 57 downside is connected with separation and reunion magnetic sleeve 59, the gear chamber 55 lower extreme wall internal fixed connection of bending with the separation and reunion electro-magnet 61 that separation and reunion magnetic sleeve 59 corresponds.

Beneficially, a clutch spring 60 is fixedly connected between an upper end face of the clutch electromagnet 61 and a lower end face of the clutch magnetic sleeve 59, a variable speed driving shaft 76 which extends forwards into the variable speed gear cavity 74 and backwards into the curved gear cavity 55 is connected in a rotationally-matched manner in a front end wall of the curved gear cavity 55, a clutch secondary bevel gear 62 which is fixedly connected with the variable speed driving shaft 76 is arranged in the curved gear cavity 55, a driving pinion 75 which is fixedly connected with the variable speed driving shaft 76 is arranged in the variable speed gear cavity 74, a driving bull gear 73 which is fixedly connected with the variable speed driving shaft 76 and is located in front of the driving pinion 75 is arranged in the variable speed gear cavity 74, a rotating shaft gear cavity 22 is arranged on a lower side of the wire wheel cavity 78, and a variable speed driven shaft 63 which extends forwards through the variable speed gear cavity 74 to the rotating shaft gear cavity 22 is connected in a rotationally-matched manner in a rear end wall of the variable speed gear cavity 74, be equipped with in the change gear chamber 74 with the driven gear wheel 72 that the running fit of variable speed driven shaft 63 is connected, be equipped with in the change gear chamber 74 with the change gear driven shaft 63 running fit is connected and is located the driven pinion 71 of driven gear wheel 72 front side, driven gear wheel 72 with the meshing of initiative pinion 75, driven pinion 71 with initiative gear wheel 73 meshes, driven gear wheel 72 with be equipped with between the driven pinion 71 with the synchronizer 70 that variable speed driven shaft 63 spline fit is connected, the running fit is connected with shift fork sleeve 69 on the synchronizer 70.

Beneficially, a speed change magnet cavity 65 is communicated with the lower side of the speed change gear cavity 74, a shift fork 68 extending downwards into the speed change magnet cavity 65 is fixedly connected to the lower end face of the shift fork sleeve 69, a speed change magnet 66 is fixedly connected to the lower end face of the left end face of the shift fork 68, a speed change spring 67 is fixedly connected between the right end face of the shift fork 68 and the right end wall of the speed change magnet cavity 65, a speed change electromagnet 64 is fixedly connected to the left end wall of the speed change magnet cavity 65, a check movable shaft 82 extending forwards into the rotary shaft gear cavity 22 is connected to the speed change driven shaft 63 in a spline fit manner, a check driving tooth 81 fixedly connected with the check movable shaft 82 is arranged in the rotary shaft gear cavity 22, a movable shaft sleeve 84 is connected to the front end of the check movable shaft 82 in a rotating fit manner, a rotating shaft 20 extending forwards and penetrating through the rotary shaft gear cavity 22 to the outside is connected to the rear end wall of the rotary gear cavity 22 in a rotating fit manner, the size that the sample thief flow can be adjusted to spinning axis 20, it observes chamber 14 to connect the chamber 17 right side to be equipped with, be equipped with rotor 15 in observing the chamber 14, rotor 15 can show the size of current flow, the terminal fixedly connected with knob 16 of spinning axis 20 front side, be equipped with in the spinning axis gear chamber 22 with spinning axis 20 fixed connection's spinning axis gear 21, line wheel chamber 78 rear end wall normal running fit is connected with and extends forward to line wheel 80 in the line wheel chamber 78, be equipped with in the line wheel chamber 78 with line wheel 79 of line wheel 80 fixed connection.

Beneficially, be equipped with in the line wheel chamber 78 with line shaft 80 fixed connection and be located the small reel 85 of big reel 79 front side, fixedly connected with sleeve stay cord 83 between small reel 85 and the loose axle sleeve 84 front end face, big reel 79 with fixedly connected with transmission stay cord 28 between the up end of lifting slide 23, main box 10 front end face fixedly connected with be located observe the warning light 12 of chamber 14 upside, observe chamber 14 upper end wall fixedly connected with infrared sensor 13.

In an initial state, the lifting spring 27 is in a relaxed state, the rotary disc 25 and the rotary plate 24 are just completely positioned in the lifting cavity 36, the magnet block spring 33 is in a relaxed state, the centrifugal magnet block 34 is just completely positioned in the centrifugal magnet block cavity 32, the clutch spring 60 is in a relaxed state, the clutch main bevel gear 58 is just meshed with the clutch auxiliary bevel gear 62, the bending driving gear 56 is just not meshed with the bending driven gear 54, the speed-changing spring 67 is in a relaxed state, the synchronizer 70 is just meshed with the driven pinion 71, the synchronizer 70 is just not meshed with the driven bull gear 72, and the checking driving gear 81 is just not meshed with the rotating shaft gear 21;

when the sampler needs to be checked for flow, the servo motor 51 is started, the servo motor 51 drives the servo motor shaft 48 to rotate, thereby driving the centrifugal main belt wheel 49 and the clutch transmission shaft 57 to rotate, the centrifugal main belt wheel 49 drives the centrifugal auxiliary belt wheel 29 to rotate through the centrifugal belt 52, thereby driving the centrifugal wheel shaft 30 to rotate, the centrifugal wheel shaft 30 driving the centrifugal wheel 31 to rotate, thereby driving the centrifugal magnet block 34 to rotate, the centrifugal magnet block 34 overcoming the magnet block spring 33 to slide outwards under the action of centrifugal force until just corresponding to the magnet 37 for lifting, the centrifugal magnet block 34 repelling the magnet 37 for lifting, thereby driving the lifting slide block 23 to slide downwards against the lifting spring 27, the lifting slide block 23 driving the rotary disc 25 and the rotating plate 24 to move downwards to be just completely connected with the cavity 17, for subsequent tightness test, and simultaneously, the closed driven tooth 35 and the closed driving tooth 43 just enter into meshing;

the lifting slide block 23 drives the large wire wheel 79 to rotate through the transmission pull rope 28, so as to drive the wire wheel shaft 80 to rotate, the wire wheel shaft 80 drives the small wire wheel 85 to rotate, so as to drive the movable shaft sleeve 84 to move forwards through the sleeve pull rope 83, the variable speed driven shaft 63 drives the checking driving tooth 81 to move forwards through the checking movable shaft 82, and at the moment, the checking driving tooth 81 and the rotating shaft gear 21 are just meshed for subsequent automatic checking;

the clutch transmission shaft 57 drives the clutch main bevel gear 58 to rotate, so that the clutch auxiliary bevel gear 62 drives the speed change driving shaft 76 to rotate, the speed change driving shaft 76 drives the driving pinion 75 and the driving gearwheel 73 to rotate, the driving pinion 75 drives the driven gearwheel 72 to rotate, at the moment, the driven gearwheel 72 idles, the driving gearwheel 73 drives the driven pinion 71 to rotate, so that the speed change driven shaft 63 is driven to rotate by the synchronizer 70, the speed change driven shaft 63 drives the checking driving gear 81 to rotate, so that the rotating shaft 20 is driven to rotate by the rotating shaft gear 21, and the automatic and rapid flow regulation is realized;

the infrared sensor 13 can detect the height position of the rotor 15, when the height position of the rotor 15 is close to a certain value of a standard value, the infrared sensor 13 sends a signal to electrify the speed-changing electromagnet 64, the speed-changing electromagnet 64 attracts the speed-changing magnet 66 to drive the shifting fork 68 to move leftwards against the speed-changing spring 67, the shifting fork 68 drives the synchronizer 70 to move leftwards through the shifting fork sleeve 69, at the moment, the synchronizer 70 is just disengaged from the driven pinion 71, the synchronizer 70 is just engaged with the driven bull gear 72, the synchronizer 70 drives the driven bull gear 72 to rotate, so that the rotating shaft 20 is finally driven to rotate, and due to the reduction of the transmission ratio in the speed-changing gear cavity 74, the rotating speed of the rotating shaft 20 is reduced to accurately adjust the flow;

when the position height of the rotor 15 reaches a standard value, the infrared sensor 13 sends a signal to enable the servo motor 51 to stop working, meanwhile, the position height of the rotor 15 is continuously detected, if the variation range of the position height of the rotor 15 is larger than a certain value, the sealing performance of the sampler is poor, the infrared sensor 13 sends a signal to enable the warning lamp 12 to emit light to inform relevant personnel, if the variation range of the position height of the rotor 15 is larger than a certain value, the infrared sensor 13 sends a signal to enable the servo motor 51 to continuously work for a period of time, the clutch electromagnet 61 is electrified, the clutch electromagnet 61 repels the clutch magnetic sleeve 59, the clutch magnetic sleeve 59 is driven to overcome the clutch spring 60 to move upwards, the clutch magnetic sleeve 59 drives the bending driving tooth 56 and the clutch main conical tooth 58 to move upwards through the clutch transmission shaft 57, at the moment, the clutch main conical tooth 58 is just disengaged from the clutch auxiliary conical tooth 62, the bending driving tooth 56 is just engaged with the bending driven tooth 54, the bending driving tooth 56 drives the bending driven tooth 54 to rotate, so as to drive the bending driven shaft 77 to rotate, the bending driven shaft 77 drives the closed main belt wheel 47 to rotate, so as to drive the closed driven belt wheel 41 to rotate through the closed belt 45, the closed driven belt wheel 41 drives the closed driving tooth 43 to rotate through the closed driving shaft 42, so as to drive the closed driven tooth 35 to rotate, the closed driven tooth 35 drives the turntable shaft gear 39 to rotate, so as to drive the turntable shaft 26 to rotate, the turntable shaft 26 drives the rotating plate 24 to rotate through the turntable 25, the rotating plate 24 just can contact with the air pump pipe 19, the air pump pipe 19 is bent under the action of the positioning thin rod 11 and the rotating plate 24, at the moment, the rotor 15 moves downwards to a zero point, if the position height of the rotor 15 at the zero point has a certain change, the sealing performance of the sampler is poor, the infrared sensor 13 emits light to make the warning lamp 12 illuminate;

if the position height of the rotor 15 at the zero point is not changed, the sampler has good sealing performance, the infrared sensor 13 sends a signal to enable the servo motor 51 to rotate reversely for a certain time, at the moment, the reverse rotation time of the servo motor 51 is the same as the forward rotation time, so that the rotary disc 25 and the rotary plate 24 are finally driven to rotate reversely to restore the initial position, after the motor rotates reversely for a certain time, the infrared sensor 13 sends a signal to enable the clutch electromagnet 61 and the variable speed electromagnet 64 to be powered off, and the functions are reset under the action of each spring.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a microbial community sampler, includes the main tank body, its characterized in that: a connecting cavity with a forward opening is arranged in the main box body, a connecting pipe is fixedly connected to the rear end wall of the connecting cavity, an air pump pipe is connected to the outer surface of the connecting pipe in a sliding fit manner, a positioning thin rod positioned on the right side of the air pump pipe is fixedly connected to the lower end surface of the connecting cavity, a lifting cavity is communicated with the upper side of the connecting cavity, a lifting slider is connected between the left end wall and the right end wall of the lifting cavity in a sliding fit manner, a lifting spring is fixedly connected between the upper end surface of the lifting slider and the upper end wall of the lifting cavity, a closed gear cavity with a leftward opening is arranged in the lifting slider, a rotary disc shaft which extends upwards into the closed gear cavity and downwards into the lifting cavity is connected to the lower end wall of the closed gear cavity in a rotating fit manner, a rotary disc fixedly connected with the rotary disc shaft is arranged in the lifting cavity, a rotary disc shaft gear fixedly connected with the rotary disc shaft is arranged on the lower end surface of the rotary disc, the lower end wall of the closed gear cavity is connected with a closed driven tooth which extends upwards into the closed gear cavity in a rotating and matching mode, the closed driven tooth which is fixedly connected with the closed driven tooth is arranged in the closed gear cavity, the closed driven tooth is meshed with the turntable shaft gear, the upper end face of the lifting slider is fixedly connected with a lifting magnet, the rear side of the lifting cavity is communicated with a centrifugal wheel cavity, the lower side of the centrifugal wheel cavity is provided with a centrifugal belt cavity which is located at the rear side of the lifting cavity, the lower side of the centrifugal belt cavity is provided with a closed belt cavity which is located at the rear side of the lifting cavity, and the rear side of the lifting cavity is communicated with a closed driving tooth which is located at the lower side of the closed belt cavity; the upper side of the centrifugal belt cavity is provided with a servo motor which is positioned at the rear side of the lifting cavity and is fixedly connected with the main box body, the lower side of the connecting cavity is provided with a wire wheel cavity, the rear side of the wire wheel cavity is provided with a speed change gear cavity which is positioned at the rear lower side of the connecting cavity, the rear side of the speed change gear cavity is provided with a bending gear cavity, the lower end surface of the servo motor is fixedly connected with a servo motor shaft which extends downwards to penetrate through the centrifugal belt cavity to the bending gear cavity, a centrifugal main belt wheel which is fixedly connected with the servo motor shaft is arranged in the centrifugal belt cavity, the upper end wall of the centrifugal belt cavity is rotationally and fittingly connected with a centrifugal wheel shaft which extends upwards to the centrifugal wheel cavity and downwards to the centrifugal belt cavity, a centrifugal secondary belt wheel which is fixedly connected with the centrifugal wheel shaft is arranged in the centrifugal belt cavity, and a centrifugal belt is dynamically and fittingly connected between the centrifugal secondary belt wheel and the centrifugal main belt wheel, a centrifugal wheel fixedly connected with the centrifugal wheel shaft is arranged in the centrifugal wheel cavity, a plurality of centrifugal magnet cavities distributed circumferentially are arranged in the centrifugal wheel, centrifugal magnets are connected to the side wall of each centrifugal magnet cavity in a sliding fit manner, and magnet springs are fixedly connected between the inner end face of each centrifugal magnet and the inner end wall of each centrifugal magnet cavity; the upper end wall of the closed driving tooth is connected with a closed driving shaft which extends upwards into the closed belt cavity and downwards into the closed driving tooth in a rotating fit manner, the closed driving tooth is internally provided with a closed driving tooth fixedly connected with the closed driving shaft, the closed belt cavity is internally provided with a closed driven belt wheel fixedly connected with the closed driving shaft, the lower end wall of the closed belt cavity is connected with a bending driven shaft which extends upwards into the closed belt cavity and downwards into the bending gear cavity in a rotating fit manner, the closed belt cavity is internally provided with a closed main belt wheel fixedly connected with the bending driven shaft, a closed belt is connected between the closed main belt wheel and the closed driven belt wheel in a power fit manner, the bending gear cavity is internally provided with a bending driven tooth fixedly connected with the bending driven shaft, and a clutch transmission shaft which extends downwards into the bending gear cavity is connected in a spline fit manner in the servo motor shaft, a bending driving tooth fixedly connected with the clutch transmission shaft is arranged in the bending gear cavity, a clutch main bevel gear fixedly connected with the clutch transmission shaft and positioned on the lower side of the bending driving tooth is arranged in the bending gear cavity, a clutch magnetic sleeve is connected to the tail end of the lower side of the clutch transmission shaft in a rotating fit mode, and a clutch electromagnet corresponding to the clutch magnetic sleeve is fixedly connected in the lower end wall of the bending gear cavity; a clutch spring is fixedly connected between the upper end face of the clutch electromagnet and the lower end face of the clutch magnetic sleeve, a speed change driving shaft which extends forwards into the speed change gear cavity and extends backwards into the bending gear cavity is connected to the front end wall of the bending gear cavity in a rotating fit manner, a clutch driven bevel gear which is fixedly connected with the speed change driving shaft is arranged in the bending gear cavity, a driving pinion which is fixedly connected with the speed change driving shaft is arranged in the speed change gear cavity, a driving large gear which is fixedly connected with the speed change driving shaft and is positioned at the front side of the driving pinion is arranged in the speed change gear cavity, a rotating shaft gear cavity is arranged at the lower side of the wire wheel cavity, a speed change driven shaft which extends forwards through the speed change gear cavity to the rotating shaft gear cavity is connected to the rear end wall of the speed change gear cavity in a rotating fit manner, and a driven large gear which is connected with the speed change driven shaft in a rotating fit manner is arranged in the speed change gear cavity, a driven pinion which is connected with the variable-speed driven shaft in a rotating fit mode and is positioned on the front side of the driven gearwheel is arranged in the variable-speed gear cavity, the driven gearwheel is meshed with the driving pinion, the driven pinion is meshed with the driving gearwheel, a synchronizer which is connected with the variable-speed driven shaft in a spline fit mode is arranged between the driven gearwheel and the driven pinion, and a shifting fork sleeve is connected to the synchronizer in a rotating fit mode; the lower side of the speed change gear cavity is communicated with a speed change magnet cavity, the lower end surface of the shifting fork sleeve is fixedly connected with a shifting fork extending downwards into the speed change magnet cavity, the lower end inside the left end surface of the shifting fork is fixedly connected with a speed change magnet, a speed change spring is fixedly connected between the right end surface of the shifting fork and the right end wall of the speed change magnet cavity, the left end wall of the speed change magnet cavity is fixedly connected with a speed change electromagnet, an inner spline of a speed change driven shaft is connected with a check movable shaft extending forwards into the rotating shaft gear cavity, a check driving tooth fixedly connected with the check movable shaft is arranged inside the rotating shaft gear cavity, the front end of the check movable shaft is connected with a movable shaft sleeve in a rotating fit manner, and the rear end wall of the rotating shaft gear cavity is connected with a rotating shaft which extends forwards and penetrates through the rotating shaft gear cavity to the outside in a rotating fit manner, the rotary shaft can adjust the flow of the sampler, the right side of the connecting cavity is provided with an observation cavity, a rotor is arranged in the observation cavity, the rotor can display the current flow, the tail end of the front side of the rotary shaft is fixedly connected with a knob, a rotary shaft gear fixedly connected with the rotary shaft is arranged in the rotary shaft gear cavity, the rear end wall of the wire wheel cavity is connected with a wire wheel shaft which extends forwards into the wire wheel cavity in a rotating fit mode, and a large wire wheel fixedly connected with the wire wheel shaft is arranged in the wire wheel cavity; the line wheel intracavity be equipped with line shaft fixed connection just is located the small line wheel of big line wheel front side, small line wheel with fixedly connected with sleeve stay cord between the preceding terminal surface of loose axle sleeve, big line wheel with fixedly connected with transmission stay cord between the lifting slide up end, terminal surface fixedly connected with is located before the main tank body the warning light of observing the chamber upside, survey chamber upper end wall fixedly connected with infrared sensor.