CN115083882A

CN115083882A - Device for mass spectrum reduction of sample injection capillary pollution

Info

Publication number: CN115083882A
Application number: CN202210999677.5A
Authority: CN
Inventors: 矫文策; 黄康鹏
Original assignee: Zhongke Runsheng Kangtai Suzhou Medical Laboratory Co ltd
Current assignee: Zhongke Runsheng Kangtai Suzhou Medical Laboratory Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-09-20
Anticipated expiration: 2042-08-19
Also published as: CN115083882B

Abstract

The invention belongs to the technical field of mass spectrometry instruments, and discloses a device for mass spectrometry mitigating sample injection capillary tube pollution, which comprises a containing box, a base plate and an installation tube seat, wherein four installation ports are formed in the outer circumference of the installation tube seat, butt-jointed tubes are slidably inserted into the installation ports, and each butt-jointed tube is installed outside the installation tube seat through a strong tensioning cover outside the butt-jointed tube; and a plurality of sand core fixing pipes which are close to each other are arranged in the containing box through a material pushing mechanism and are used for sequentially pushing the sand core fixing pipes which are sequentially arranged in the containing box to be right behind the mounting pipe seat to wait for replacement. The invention reduces the manual direct participation step, further reduces the pollution probability of the capillary, and the reloading process is realized by the automatic cooperation of the mechanism, so that the time for the instrument to be stopped is greatly shortened, and the high-sensitivity detection and analysis efficiency of the instrument in the high-load operation process can be ensured to the maximum extent.

Description

Device for mass spectrum reduction of sample injection capillary pollution

Technical Field

The invention relates to the technical field of mass spectrometry instruments, in particular to a device for mass spectrometry to alleviate sample injection capillary pollution.

Background

The mass spectrometer can bombard sample molecules with high energy electron streams or the like, causing the molecules to lose electrons and become positively charged molecular and fragment ions. A sample introduction system in a mass spectrometer ensures that molecules of a sample to be detected can efficiently enter a key component of an ionization source on the premise of ensuring the vacuum degree of the mass spectrometer, a capillary tube sample introduction mode is simple in structure, a capillary tube with a certain length and an inner diameter is selected according to the vacuum degree requirement of an ionization region, one end of the capillary tube is arranged in a cavity of the ionization region of the mass spectrometer, the other end of the capillary tube is arranged in the sample to be detected, and then the sample to be detected can continuously and efficiently enter the ionization region of the mass spectrometer by utilizing pressure difference to realize ionization.

In the operation process of the mass spectrometer, a large amount of fine granular impurities exist in a sample, and the fine granular impurities easily enter a sample injection capillary tube to block the pipeline, so that the high-sensitivity detection effect of a sample to be detected is influenced finally.

The existing solution is to add a sand core fixing tube in the middle of a sample injection capillary tube and fill a sand core in the sand core fixing tube, but in the high-load operation process of a mass spectrometer at present, in order to ensure the high-sensitivity detection effect of the instrument, the instrument is often required to be shut down for multiple times and the sand core fixing tube and the sand core are replaced, more time can be delayed in the replacement process, manual matching is required, the probability of pollution of the capillary tube is increased, and the analysis processing efficiency of the instrument can be influenced to a certain extent due to too much downtime caused by replacement.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, in order to ensure the high-sensitivity detection effect of an instrument, the instrument is required to be stopped for many times and a sand core fixing pipe and a sand core are required to be replaced, the replacing process delays much time, manual cooperation is required, the probability of capillary tube pollution is increased, and in addition, the analysis and treatment efficiency of the instrument is influenced to a certain extent due to excessive stopping time caused by replacement, and the device for mass spectrum reduction of sample injection capillary pollution is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

a device for mass spectrum reduction of sample injection capillary pollution comprises a containing box, a base plate and an installation tube seat, wherein four installation ports are formed in the outer circumference of the installation tube seat, butt-jointed tubes are arranged in the installation ports in a sliding manner, and each butt-jointed tube is installed outside the installation tube seat through a strong tensioning cover outside the butt-jointed tube;

a plurality of sand core fixing pipes which are close to each other are arranged in the containing box through a material pushing mechanism and are used for sequentially pushing the sand core fixing pipes which are sequentially arranged in the containing box to be right behind the mounting pipe seat for replacement, and each sand core fixing pipe is internally provided with a sand core for filtering and purifying samples, the sand core can be any one or combination of a sintered filter core, a filter membrane and a filter screen, the rear part of the containing box is provided with a replacing and fixing integrated mechanism matched with the butt joint pipe outside the mounting pipe seat, for realizing the close connection of the other sand core fixing pipe and the sand core with a corresponding pair of butt joint pipes in the installation pipe seat after replacing the sand core fixing pipe and the sand core in the installation pipe seat, and a transferring mechanism matched with the mounting tube seat is installed in front of the mounting tube seat and used for quickly and alternately transferring two pairs of butt-joint tubes for communicating the sample storage and the mass spectrum detector.

Furthermore, the left side and the right side of each sand core fixing pipe are respectively embedded with an iron sheet, two hanging rods are installed at the top of the containing box at intervals, the front ends of the two hanging rods extend into the installation pipe seat and are respectively and fixedly provided with a T-shaped alignment seat, the two T-shaped alignment seats are arranged in a bilateral symmetry mode, and magnets are embedded in the opposite sides of the two T-shaped alignment seats.

Through the technical scheme, the two magnets on the two T-shaped alignment seats can perform one temporary setting on the sand core fixing pipe between the two T-shaped alignment seats, and when the two butt joint pipes in the vertical state are prevented from being far away, the sand core fixing pipe is arranged in the mounting pipe seat in a suspension mode, and a temporary position is provided for the arrangement of the sand core fixing pipe in the mounting pipe seat.

Furthermore, the pushing mechanism comprises at least two pushing springs fixed on the inner side wall of the containing box, one ends of the two pushing springs, which are close to the mounting tube seat, are jointly connected and fixed with a pushing seat, and one side of the pushing seat, which is far away from the mounting tube seat, is provided with a rectangular groove for mounting the multiple pushing springs.

Through the technical scheme, the existence of the rectangular groove can play a role of a baffle for the material pushing spring, and the material pushing spring is prevented from clamping a clamp for putting in the sand core fixing pipe when the sand core fixing pipe is added again from the bottom side of the containing box.

Furthermore, the material changing and fixing integrated mechanism comprises a material changing seat, a transmission seat and two cantilevers, the transmission seat is fixedly installed beside the containing box through a pair of connecting and fixing frames, a U-shaped frame is fixedly installed on the back side of the containing box, a telescopic rod piece is fixedly installed on the inner side wall of the U-shaped frame, the front end of the telescopic rod piece is fixedly connected with the back side of the material changing seat, and the material changing seat is movably arranged in the U-shaped frame;

piston rods II are inserted into the upper and lower sides of the front end of the transmission seat in a sliding manner, the opposite ends of the two piston rods II are fixedly connected with the vertical end faces of the two cantilevers respectively, extension springs are sleeved outside the two piston rods, the head ends and the tail ends of the extension springs are fixedly connected with the tail end faces of the corresponding cantilevers and the front end side face of the transmission seat respectively, and hanging parts are installed at the transverse straight ends of the two cantilevers;

a first piston rod is inserted into the side face of the rear end of the transmission seat in a sliding manner, a roller is rotatably mounted at one end of the first piston rod, which extends out of the transmission seat, through a C-shaped frame, a compression spring is sleeved outside the first piston rod, and the head end and the tail end of the compression spring are fixedly connected with the side face of the rear end of the transmission seat and the side face of the C-shaped frame respectively;

and the backing plate is provided with a driving assembly matched with the roller and the material changing seat.

Through the technical scheme, the old sand core fixing pipe in the installation pipe seat can be pushed out, the sand core fixing pipe which is just arranged on the installation pipe seat in the containing box is pushed forwards into the installation pipe seat, and the two cantilevers and the two hanging parts can be matched with each other in a state that the two butt joint pipes in a vertical state are pulled outwards and reset to be compressed, so that the sand core fixing pipe and the corresponding sand core in the sand core fixing pipe can be replaced conveniently.

Further, the hanging part is including inlaying the pivot two of inlaying the dress at cantilever tip, the two outer rotations of pivot are connected with dials the pulling-on piece, dial the pulling-on piece and be the setting of L shape, just two concrete settings of pivot are the damping pivot, every the dorsal part of butt joint pipe all seted up with dial the card of pulling-on piece appearance looks adaptation and support the recess.

Through above-mentioned technical scheme, dial the pulling-on piece and need lift up backward at the installation tube socket rotation in-process, just withdraw from original butt joint pipe the protruding end of buckling of pulling-on piece, make things convenient for the butt joint pipe to rotate the adjustment along with the installation tube socket.

Further, drive assembly installs pivot one on the backing plate including rotating, the fixed cover in proper order in the upper end of pivot one has connect carousel and cam, the setting that offsets between cam and the gyro wheel, the top of carousel passes through the connecting rod and links to each other with the transmission of reloading seat, the fixed cover of lower extreme of pivot one has connect the worm wheel, the installation is fixed with on the backing plate and drives the commentaries on classics motor, drive the output fixedly connected with worm of commentaries on classics motor, the meshing is connected between worm and the worm wheel.

Through above-mentioned technical scheme, a rotation round is rotated in the pivot, and the carousel rotates the round like this and can realize pushing forward and the mesh that resets backward to the seat of reloading in the U-shaped frame with the connecting rod cooperation, and the cam rotates the round and can realize two cantilever areas and dial far removing of pulling-on piece and drawing close the mesh between two parties.

Furthermore, a second pin column is hinged to the inner side wall of the material changing seat, the upper end of the second pin column is rotatably connected to the front end of the connecting rod, a first pin column is rotatably inserted into the rear end of the connecting rod, and the lower end of the first pin column is rotatably inserted into the top of the rotary table.

Through the technical scheme, the rotating turntable can drive the material changing seat to longitudinally move along the horizontal plane in the U-shaped frame.

Furthermore, an inclined plane is formed in one side of the front end of the material changing seat, and the inclined plane is arranged on the side face, far away from the transmission seat, of the material changing seat.

Through the technical scheme, one side of the front end of the material changing seat is in a blade shape due to the arrangement of the inclined plane, so that the sand core fixing pipe needing to be pushed forwards in the containing box can be separated from the sand core fixing pipe beside the sand core fixing pipe.

Further, transfer mechanism includes ring gear, rotating ring body and rotation mounting bracket, the interval is installed at two side and is decided the frame about the front side of holding the box, rotate mounting bracket fixed mounting and decide the front end of frame at two sides, rotating ring body rotates and installs within rotating the mounting bracket, rotating ring body's back links to each other with the preceding terminal surface of installation tube socket is fixed, rotating ring body's preceding terminal surface fixedly connected with ring gear, the front side of holding the box is installed with revolving cylinder, revolving cylinder's output fixed mounting has the pinion, the meshing is connected between pinion and the ring gear.

Through the technical scheme, the installation tube seat and the gear ring are connected and fixed, the gear ring rotates to realize the rotation of the installation tube seat, so that the transposition of two pairs of butt joint tubes in the installation tube seat can be realized, and the butt joint end parts of the capillary tubes are detached from the two butt joint tubes in the vertical state before rotation.

Furthermore, a feed inlet is formed in the bottom side of one end, far away from the mounting tube seat, of the containing box, and a narrow plate matched with the feed inlet is hinged to the bottom side of the containing box through a hinge.

Through the technical scheme, the narrow plate is hinged, so that the feeding opening is plugged after a new batch of sand core fixing pipes are added, and the condition that foreign matters invade into the containing box to pollute the sand core fixing pipes when the narrow plate is stored for a long time is avoided.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the old sand core fixing pipe in the installation pipe seat can be pushed out by changing the forward pushing effect of the material changing seat in the integrated mechanism, and the sand core fixing pipe which is arranged in the containing box and is right opposite to the installation pipe seat is pushed forward into the installation pipe seat, wherein the two cantilevers and the two hanging and connecting parts can be matched with the two butt-joint pipes in a vertical state in a state of pulling outwards and resetting and pressing, so that the sand core fixing pipe and the corresponding sand core in the sand core fixing pipe can be conveniently replaced, compared with the prior art, the manual direct participation steps are reduced, the pollution probability of a capillary tube is further reduced, the replacing process is realized by means of self-cooperation of the mechanism, the time for stopping the instrument is greatly shortened, and the high-sensitivity detection and analysis efficiency of the instrument in the high-load running process can be ensured to the maximum extent;

2. in the process of replacing the sand core fixing pipe and the sand core in the sand core fixing pipe, the withdrawing action of the material replacing seat is closely linked with the back pressure actions of the two butt joint pipes in the vertical state, so that the installation airtightness and the firmness of the replaced sand core fixing pipe and the sand core in the two vertical state parts in the installation pipe seat can be ensured, and the continuous and normal action of the capillary pipe is ensured;

3. the forward pushing of the reloading seat and the recursion of the sand core fixing pipe in the containing box are effectively combined, only enough sand core fixing pipes are needed to be added into the containing box once, the equipment can run for a long time, the connecting part of the capillary tube in the instrument is replaced, and the device is efficient and trouble-saving.

Drawings

FIG. 1 is a first three-dimensional structure of the present invention;

FIG. 2 is a schematic diagram of a three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the connection of the hanger bar, the T-shaped alignment seat and the magnet according to the present invention;

FIG. 4 is a schematic connection diagram of the container box, the backing plate, the transmission seat, the mounting tube seat and the integrated replacing mechanism;

FIG. 5 is a first three-dimensional schematic diagram of the main components of the present invention;

FIG. 6 is a second three-dimensional schematic view of the main components of the present invention;

FIG. 7 is an enlarged view of the main components of the base plate, the transmission seat and the suspension arm;

FIG. 8 is a schematic view of the combination of the turntable, the refueling seat, the sand core fixing pipe, the iron sheet and the sand core.

The numbering in the figures illustrates:

1. a containing box; 2. a base plate; 3. a transmission seat; 4. a cantilever; 5. installing a tube seat; 6. butt-joint pipes; 7. a ring gear; 8. a rotating cylinder; 9. a pinion gear; 10. a boom; 11. a T-shaped alignment seat; 12. driving the motor; 13. a turntable; 14. a connecting rod; 15. a U-shaped frame; 16. a telescopic rod member; 17. a material changing seat; 1701. a bevel; 18. a magnet; 19. a connecting and fixing frame; 20. a first rotating shaft; 21. a worm; 22. a worm gear; 23. a cam; 24. a strong tensioning cover; 25. a pusher spring; 26. a material pushing seat; 27. the sand core is used for fixing the pipe; 28. pulling the pull piece; 29. a second rotating shaft; 30. a first piston rod; 31. a compression spring; 32. a roller; 33. a piston rod II; 34. an extension spring; 35. iron sheets; 36. a sand core; 37. a first pin; 38. a pin II; 39. a rotating ring body; 40. rotating the mounting rack; 41. and (5) laterally fixing the frame.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1-8, the apparatus for reducing contamination of a sample injection capillary by mass spectrometry in this embodiment includes a containing box 1, a backing plate 2 and an installation tube seat 5, the backing plate 2 is fixed at the back of the containing box 1, four installation ports are formed in the periphery of the installation tube seat 5, a butt joint tube 6 is slidably inserted into each installation port, each butt joint tube 6 is installed outside the installation tube seat 5 through a strong tension cover 24 outside the butt joint tube 6, the strong tension cover 24 may be an alloy kit with strong pull-back capability, so as to tightly pull the butt joint tube 6 slidably inserted into the installation port into the installation tube seat 5, ensure that a sand core fixing tube 27 outside a sand core 36 is firmly clamped between two butt joint tubes 6 in the installation tube seat 5 in a vertical state, and cooperate with a capillary tube to transmit a sample between a sample storage and an ionization region cavity of an instrument;

a plurality of sand core fixing pipes 27 which are arranged closely are arranged in the containing box 1 through a material pushing mechanism, and are used for pushing the sand core fixing pipes 27 which are sequentially arranged in the containing box 1 to the right back of the installation pipe seat 5 in sequence to wait for replacement, and a sand core 36 for filtering and purifying samples is arranged in each sand core fixing pipe 27, the lower part of the sand core 36 can be connected with a one-way valve arranged in the sand core fixing pipe 27 to avoid the reverse movement and the reverse flow of the samples in the capillary, a switching and fixing integrated mechanism matched with the butt joint pipe 6 outside the mounting pipe seat 5 is arranged at the rear part of the containing box 1, for realizing the tight connection of the other sand core fixing pipe 27 and the sand core 36 with the corresponding pair of butt joint pipes 6 in the installation pipe seat 5 after replacing the sand core fixing pipe 27 and the sand core 36 in the installation pipe seat 5, and a transferring mechanism matched with the mounting tube seat 5 is arranged in front of the mounting tube seat 5 and used for quickly and alternately transferring two pairs of butt joint tubes 6 for communicating the sample storage and the mass spectrum detector.

Iron sheets 35 are embedded on the left side and the right side of each sand core fixing pipe 27, two hanging rods 10 are installed at the top of the containing box 1 at intervals, the front ends of the two hanging rods 10 extend into the installation pipe seat 5 and are respectively and fixedly provided with T-shaped aligning seats 11, the two T-shaped aligning seats 11 are arranged close to the front end face of the installation pipe seat 5 to avoid influencing the direction replacement of the two pairs of abutting pipes 6 in the rotating installation pipe seat 5, the two T-shaped aligning seats 11 are symmetrically arranged in the left and right direction, and the magnets 18 are embedded on the opposite sides of the two T-shaped aligning seats 11, so that the two magnets 18 on the two T-shaped aligning seats 11 can temporarily fix the sand core fixing pipe 27 between the two T-shaped aligning seats 11, when the two abutting pipes 6 in the vertical state are far away, the sand core fixing pipe 27 is suspended in the installation pipe seat 5 to provide a fixing point position for the temporary placement of the sand core fixing pipe 27 in the installation pipe seat 5, the effect of tightly clamping the head and the tail of the two vertical butt joint pipes 6 close to the sand core fixing pipes 27 after reset can be ensured, and unstable clamping is avoided.

The pushing mechanism comprises at least two pushing springs 25 fixed on the inner side wall of the containing box 1, one ends of the two pushing springs 25 close to the mounting tube seats 5 are jointly connected and fixed with pushing seats 26, and one side of the material pushing seat 26, which is far away from the mounting tube seat 5, is provided with a rectangular groove for mounting a plurality of material pushing springs 25, the existence of the rectangular groove can play a role of enclosure for the material pushing springs 25, when the sand core fixing tube 27 is added again from the bottom side of the containing box 1, the pushing spring 25 accidentally clamps the clamp for throwing the sand core fixing pipe 27, when the sand core fixing pipe 27 is added, the pushing seat 26 needs to be pushed back to the side far away from the mounting pipe seat 5, thus, the newly-placed sand core fixing pipe 27 can be provided with maximum space, and the most part of the material pushing spring 25 in the contraction state is collected in the material pushing seat 26, thereby avoiding the situation that the pushing spring 25 clamps and blocks the clamp for throwing the sand core fixing pipe 27.

The bottom side of one end of the containing box 1, which is far away from the mounting tube seat 5, is provided with a feeding port, the length of the feeding port is slightly smaller than that of the containing box 1, the feeding port cannot be too small, when the too small feeding port is consumed by the sand core fixing tube 27 which is fed in the containing box 1 in advance, the material pushing seat 26 is positioned at the position close to the side surface of the material replacing seat 17, so that the material pushing seat 26 cannot be pulled back conveniently, a narrow plate matched with the feeding port is hinged to the bottom side of the containing box 1 through a hinge, the narrow plate is hinged to be installed, the feeding port is plugged after a new batch of sand core fixing tubes 27 are added conveniently, and foreign matters are prevented from invading into the containing box 1 to pollute the sand core fixing tube 27 when the sand core fixing tube is stored for a long time.

The replacing and fixing integrated mechanism comprises a replacing seat 17, a transmission seat 3 and two cantilevers 4, the transmission seat 3 is fixedly arranged beside the containing box 1 through a pair of connecting and fixing frames 19, a U-shaped frame 15 is fixedly arranged on the back side of the containing box 1, a telescopic rod piece 16 is fixedly arranged on the inner side wall of the U-shaped frame 15, the front end of the telescopic rod piece 16 is fixedly connected with the back side of the replacing seat 17, the telescopic characteristic of the replacing seat 17 in the U-shaped frame 15 ensures that the replacing seat 17 can only longitudinally translate back and forth along the horizontal direction, the use stability of the replacing seat 17 which has main replacing effect and needs to reciprocate is improved, and the replacing seat 17 is movably arranged in the U-shaped frame 15;

the inclined plane 1701 is arranged on one side of the front end of the material changing seat 17, the inclined plane 1701 is arranged on the side face, far away from the transmission seat 3, of the material changing seat 17, and due to the arrangement of the inclined plane 1701, one side of the front end of the material changing seat 17 is in a blade shape, so that the sand core fixing pipe 27 needing to be pushed forwards in the containing box 1 can be separated from the sand core fixing pipe 27 beside the sand core fixing pipe, the fact that only one sand core fixing pipe 27 can be pushed by pushing the material changing seat 17 every time is guaranteed, and the accuracy of operation of equipment is guaranteed.

Piston rods two 33 are inserted into the upper side and the lower side of the front end of the transmission seat 3 in a sliding manner, the opposite ends of the two piston rods two 33 are fixedly connected with the vertical end faces of the two cantilevers 4 respectively, extension springs 34 are sleeved outside the two piston rods two 33, so that the two piston rods 33 can be matched with the cantilevers 4 and the pull pieces 28 connected with the two piston rods two 33 to translate in the vertical direction, the purposes of pulling out and removing the two butt joint pipes 6 in the vertical state and resetting and locking are achieved, the head end and the tail end of each extension spring 34 are fixedly connected with the tail end face of the corresponding cantilever 4 and the front end face of the transmission seat 3 respectively, hanging parts are installed at the transverse straight ends of the two cantilevers 4, and the hanging parts are used for carrying out the vertical smooth driving on the two butt joint pipes 6 in the vertical state;

a first piston rod 30 is inserted on the side surface of the rear end of the transmission seat 3 in a sliding manner, a roller 32 is rotatably mounted at one end of the first piston rod 30, which extends out of the transmission seat 3, through a C-shaped frame, the roller 32 is matched with the cam 23 to reduce and avoid the retardation phenomenon when the cam 23 presses against the first piston rod 30, so that the transmission smoothness is ensured, a compression spring 31 is sleeved outside the first piston rod 30, the head end and the tail end of the compression spring 31 are fixedly connected with the side surface of the rear end of the transmission seat 3 and the side surface of the C-shaped frame respectively, the compression spring 31 is used for tightly pressing the roller 32 against the outside of the cam 23, and the purpose of reciprocating movement of the first piston rod 30 is realized by matching the appearance change of the rotating cam 23;

the inner cavity of the transmission seat 3 is filled with hydraulic oil between the two piston rods two 33 and the piston rod one 30, so that the two piston rods two 33 and the piston rod one 30 can be adaptively displaced;

install on the backing plate 2 with gyro wheel 32 and the drive assembly of reloading seat 17 assorted, realize reloading seat 17 and two cantilevers 4, two group pulling-on pieces 28 and two vertical states's the synchronous drive of butt joint pipe 6 through setting up of a subassembly, the cooperation is inseparable, link up the practicality.

The driving assembly comprises a first rotating shaft 20 rotatably installed on the backing plate 2, a rotating disc 13 and a cam 23 are fixedly sleeved at the upper end of the first rotating shaft 20 in sequence, the rotating disc 13 can be matched with a connecting rod 14 to achieve the purposes of forward pushing and backward resetting of the material changing seat 17 in the U-shaped frame 15 by rotating the rotating disc 13 for one circle, the cam 23 is abutted against a roller 32, the top of the rotating disc 13 is in transmission connection with the material changing seat 17 through the connecting rod 14, the cam 23 can achieve the purposes of far withdrawing and centered closing of two pull pieces 28 on two cantilevers 4 by rotating the cam 23 for one circle, a worm wheel 22 is fixedly sleeved at the lower end of the first rotating shaft 20, a driving motor 12 is fixedly installed on the backing plate 2, a worm 21 is fixedly connected to the output end of the driving motor 12, the worm 21 is in meshing connection with the worm wheel 22, and the worm 21 and the worm wheel 22 are in meshing transmission to slow down the rotating speed of the output end of the driving motor 12, so that the rotating speed of the first rotating shaft 20 is reduced, and the rotating speed of the rotating disc 13 and the rotating speed of the cam 23 are more stable and moderate.

A second pin column 38 is hinged to the inner side wall of the material changing seat 17, the upper end of the second pin column 38 is rotatably connected to the front end of the connecting rod 14, a first pin column 37 is rotatably inserted into the rear end of the connecting rod 14, and the lower end of the first pin column 37 is rotatably inserted into the top of the rotary table 13, so that the rotary table 13 can drive the material changing seat 17 to longitudinally move along a horizontal plane in the U-shaped frame 15, and the realized key element is that the head end and the tail end of the connecting rod 14 are hinged or rotatably connected with the rotary table 13 and the material changing seat 17.

The transferring mechanism comprises a gear ring 7, a rotating ring body 39 and a rotating mounting frame 40, two side fixing frames 41 are vertically installed on the front side of the containing box 1 at intervals, the rotating mounting frame 40 is fixedly installed at the front ends of the two side fixing frames 41, the rotating mounting frame 40 supporting the rotating ring body 39 to rotate is fixedly installed in front of the mounting tube seat 5 through the two side fixing frames 41, the rotating ring body 39 is rotatably installed in the rotating mounting frame 40, the back of the rotating ring body 39 is fixedly connected with the front end face of the mounting tube seat 5, the front end face of the rotating ring body 39 is fixedly connected with the gear ring 7, the mounting tube seat 5 and the gear ring 7 are connected and fixed in such a way, the gear ring 7 rotates to realize the rotation of the mounting tube seat 5, the transposition of two pairs of butt-joint tubes 6 in the mounting tube seat 5 can be realized, the butt-joint end parts of the capillary tubes are dismounted from the two butt-joint tubes 6 in a vertical state before the rotation, and two standby butt-joint tubes 6 in an original horizontal state are transferred to the vertical state for standby, two reserve butt joint pipes 6 of horizontality can keep apart through sealed lid when idle, prevent the adhesion of foreign matter, will be originally two butt joint pipes 6 of vertical state and change to the horizontality and maintain and clear up, the front side installation of receiving flourishing box 1 has revolving cylinder 8, revolving cylinder 8's output fixed mounting has pinion 9, the meshing is connected between pinion 9 and the ring gear 7, revolving cylinder 8 can realize the rotation and the gyration of specific angle, the regulation of installation tube socket 5 has greatly been made things convenient for like this, reliably and brute force.

The specific implementation steps of the method are as follows: when the old sand core mounting pipe 27 in the mounting pipe seat 5 needs to be replaced, the driving motor 12 drives the worm 21 to rotate, the worm 21 rotates to drive the worm wheel 22 to rotate, the worm wheel 22 rotates for one circle, namely, the driving motor 12 stops rotating once,

thus, the first half circle cam 23 rotates to press the roller 32, the first piston rod 30 is pressed into the transmission seat 3, the second piston rods 33 are respectively pressed and pushed upwards and downwards, the two cantilevers 4 and the two pull-tab 28 are driven to respectively withdraw the two butt joint pipes 6 in the vertical state towards the up and down directions, and the used sand core fixing pipe 27 is loosened;

correspondingly, in the first half circle of the rotation of the rotary table 13, the connecting rod 14 pushes the material replacing seat 17 to push the new sand core fixing pipe 27 into the installation pipe seat 5 in front of the new sand core fixing pipe, the used sand core fixing pipe 27 is pushed out along the same trend, and the pushed sand core fixing pipe 27 achieves the suspended temporary purpose in the installation pipe seat 5 by means of the suction effect of the two iron sheets 35 on the two sides and the two magnets 18 on the two T-shaped alignment seats 11;

the cam 23 in the rotation process of the rear half ring presses against the roller 32 to cause the first piston rod 30 to reset outwards, so that the two second piston rods 33 are reset by retracting inwards with the participation of hydraulic oil, the two cantilevers 4 drive the two pull-tab 28 to put the two butt joint pipes 6 connected with the pull-tab back and collect the two butt joint pipes 6 in the mounting pipe seat 5, and the press locking effect of the two collected butt joint pipes 6 on the newly-placed sand core fixing pipe 27 is achieved;

and the material changing seat 17 is retracted and reset after the rotary table 13 rotates, the material pushing spring 25 is matched with the material pushing seat 26 to push the new sand core fixing pipe 27 to the position right opposite to the rear part of the mounting pipe seat 5, and thus, the whole new process of changing the sand core fixing pipe 27 and the sand core 36 assembled in the sand core fixing pipe 27 is completed.

Example 2:

this example differs from example 1 in that: the hanging part comprises a second rotating shaft 29 embedded at the end part of the cantilever 4, a pulling piece 28 is rotatably connected outside the second rotating shaft 29, the pulling piece 28 is arranged in an L shape, the shape is limited, the pulling piece is more stable after being combined with the clamping and supporting groove, the possibility of accidental loosening is greatly reduced, the failure rate of equipment is reduced, the second rotating shaft 29 is specifically arranged as a damping rotating shaft, the pulling piece 28 needs to be lifted backwards in the rotating process of the mounting pipe seat 5, namely, the bent convex end of the pulling piece 28 is evacuated from the original butt joint pipe 6, the butt joint pipe 6 is convenient to rotate and adjust along with the mounting pipe seat 5, and the clamping and supporting groove matched with the appearance of the pulling piece 28 is formed in the back side of each butt joint pipe 6.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a device that is used for mass spectrum to slow down and advances a kind capillary and pollute, includes and holds box (1), backing plate (2) and installation tube socket (5), its characterized in that: four mounting ports are formed in the periphery of the mounting tube seat (5), butt-jointed tubes (6) are slidably inserted into each mounting port, and each butt-jointed tube (6) is mounted outside the mounting tube seat (5) through a strong tensioning cover (24) outside the butt-jointed tube (6);

a plurality of sand core mounting and fixing pipes (27) which are close to each other are arranged in the containing box (1) through a material pushing mechanism and are used for sequentially pushing the sand core mounting and fixing pipes (27) which are sequentially arranged in the containing box (1) to the position right behind the installation pipe seat (5) to be replaced, a sand core (36) for filtering and purifying a sample is arranged in each sand core mounting and fixing pipe (27), an integrated replacing mechanism which is matched with the external butt joint pipe (6) of the installation pipe seat (5) is arranged behind the containing box (1) and is used for realizing the close connection of the other sand core mounting and fixing pipe (27) and the sand core (36) with the corresponding butt joint pipe (6) in the installation pipe seat (5) after the sand core mounting and fixing pipe (27) and the sand core (36) in the installation pipe seat (5) are replaced, and an adjusting mechanism which is matched with the installation pipe seat (5) is arranged in front of the installation pipe seat (5), the device is used for quickly and alternately connecting two pairs of butt joint pipes (6) of the sample storage and the mass spectrum detector.

2. The apparatus of claim 1, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and further comprising: every the left and right sides of psammitolite ann solid pipe (27) all inlays and is equipped with iron sheet (35), two jib (10) are installed at the top interval of holding box (1), two the front end of jib (10) stretches into in erection tube seat (5) and fixed mounting respectively has T shape counterpoint seat (11), two T shape counterpoint seat (11) bilateral symmetry sets up, and two one side that T shape counterpoint seat (11) are relative all inlays and is equipped with magnet (18).

3. The apparatus of claim 1, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and further comprising: the pushing mechanism comprises at least two pushing springs (25) fixed on the inner side wall of the accommodating box (1), two pushing springs (25) are jointly connected and fixed with a pushing seat (26) at one end close to the mounting tube seat (5), and a rectangular groove for mounting the pushing springs (25) is formed in one side, far away from the mounting tube seat (5), of the pushing seat (26).

4. The apparatus of claim 1, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and further comprising: the replacing and fixing integrated mechanism comprises a replacing seat (17), a transmission seat (3) and two cantilevers (4), the transmission seat (3) is fixedly installed beside the containing box (1) through a pair of connecting and fixing frames (19), a U-shaped frame (15) is fixedly installed on the back side of the containing box (1), a telescopic rod piece (16) is fixedly installed on the inner side wall of the U-shaped frame (15), the front end of the telescopic rod piece (16) is fixedly connected with the back side of the replacing seat (17), and the replacing seat (17) is movably arranged in the U-shaped frame (15);

piston rods (33) are slidably inserted into the upper side and the lower side of the front end of the transmission seat (3), opposite ends of the two piston rods (33) are fixedly connected with the end faces of the vertical ends of the two cantilevers (4) respectively, extension springs (34) are sleeved outside the two piston rods (33), the head end and the tail end of each extension spring (34) are fixedly connected with the tail end face of the corresponding cantilever (4) and the side face of the front end of the transmission seat (3) respectively, and hanging parts are mounted at the horizontal straight ends of the two cantilevers (4);

a first piston rod (30) is inserted into the side face of the rear end of the transmission seat (3) in a sliding mode, a roller (32) is rotatably mounted at one end, extending out of the transmission seat (3), of the first piston rod (30) through a C-shaped frame, a compression spring (31) is sleeved outside the first piston rod (30), and the head end and the tail end of the compression spring (31) are fixedly connected with the side face of the rear end of the transmission seat (3) and the side face of the C-shaped frame respectively;

and a driving assembly matched with the roller (32) and the material changing seat (17) is arranged on the backing plate (2).

5. The apparatus of claim 4, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and the apparatus further comprises: the hanging part comprises a second rotating shaft (29) embedded at the end part of the cantilever (4), a pulling-on piece (28) is rotatably connected outside the second rotating shaft (29), the pulling-on piece (28) is arranged in an L shape, the second rotating shaft (29) is specifically arranged into a damping rotating shaft, and each butt joint pipe (6) is provided with a clamping and abutting groove matched with the shape of the pulling-on piece (28).

6. The apparatus of claim 4, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and the apparatus further comprises: drive assembly installs pivot (20) on backing plate (2) including rotating, the upper end of pivot (20) is fixed cover in proper order and is connect carousel (13) and cam (23), offset setting between cam (23) and gyro wheel (32), the top of carousel (13) is passed through connecting rod (14) and is linked to each other with reloading seat (17) transmission, the fixed cover of lower extreme of pivot (20) has worm wheel (22), the installation is fixed with drives motor (12) on backing plate (2), the output fixedly connected with worm (21) of driving motor (12), worm (21) and worm wheel (22) are engaged with within a definite time and are connected.

7. The apparatus of claim 6, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and further comprising: a second pin column (38) is hinged to the inner side wall of the material changing seat (17), the upper end of the second pin column (38) is rotatably connected to the front end of the connecting rod (14), a first pin column (37) is rotatably inserted into the rear end of the connecting rod (14), and the lower end of the first pin column (37) is rotatably inserted into the top of the rotary table (13).

8. The apparatus of claim 4, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and the apparatus further comprises: an inclined surface (1701) is formed in one side of the front end of the material changing seat (17), and the inclined surface (1701) is arranged on the side face, far away from the transmission seat (3), of the material changing seat (17).

9. The apparatus of claim 1, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and further comprising: transfer mechanism includes ring gear (7), rotates ring body (39) and rotation mounting bracket (40), it decides frame (41) to receive two sides to install the interval from top to bottom on the front side of flourishing box (1), rotate mounting bracket (40) fixed mounting and decide the front end of frame (41) in two sides, it rotates ring body (39) and rotates and install within rotation mounting bracket (40), the back that rotates ring body (39) links to each other with the preceding terminal surface of installation tube socket (5) is fixed, the preceding terminal surface fixedly connected with ring gear (7) that rotates ring body (39), it installs revolving cylinder (8) to receive the front side of flourishing box (1), the output fixed mounting of revolving cylinder (8) has pinion (9), the meshing is connected between pinion (9) and ring gear (7).

10. The apparatus of claim 3, wherein the mass spectrometer is configured to mitigate sample capillary contamination, and further comprising: the bottom side of one end, far away from the mounting tube seat (5), of the containing box (1) is provided with a feeding opening, and the bottom side of the containing box (1) is hinged with a narrow plate matched with the feeding opening through a hinge.