CN214584422U - Sample solution multi-gradient diluter - Google Patents

Abstract

The utility model discloses a many gradients of sample solution diluter, including diluting case, standing groove and casing, the standing groove is installed to the intermediate position department of the inside bottom of casing equidistant, and installs driving motor on the top of casing opposite side, the lead screw that extends to the inside top of casing is transversely installed through the bearing to the driving motor output, and the surperficial threaded connection of lead screw has the pole piece, the bottom welding of pole piece has the diluting case, and dilutes the equidistant vertical absorption rifle head that extends to diluting the case outside of installing of case bottom, and the inside sliding connection of diluting the case of first pneumatic telescopic link output has the adjustable shelf, the equidistant vertical installation of fly leaf bottom has the movable rod that extends to the absorption rifle head inside, and the inside sliding connection of absorption rifle head of movable rod bottom has the piston. The utility model discloses a set up sealed the pad for it is more stable to be connected with the absorption head, and uses all to have good leakproofness for a long time, guarantees the normal clear of diluting the operation.

Description

Sample solution multi-gradient diluter

Technical Field

The utility model relates to a solution dilution technical field specifically is a many gradients of sample solution diluter.

Background

With the continuous improvement of the economic level of China, in food, industrial production and some scientific researches, certain sample solutions are generally required to be detected, and in order to ensure the detection precision, the sample solutions are generally required to be diluted in multiple gradients, but the existing sample solution multi-gradient diluter has many problems or defects:

first, traditional many gradients of sample solution diluter does not have clamping structure during the use, and the sample cell is placed stably inadequately, rocks when easily making the sample dilute, reduces work efficiency.

Second, traditional many gradients of sample solution diluter does not have dustproof construction during the use, and at sample, laying-out process, the suction head can inhale impurity such as some dust unavoidably, influences subsequent use.

Third, traditional many gradients of sample solution diluter, the leakproofness is relatively poor during the use, and the device uses the back for a long time, can and the suction tube between be connected and produce the clearance, influence dilution efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many gradients of sample solution diluter to solve inconvenient centre gripping, inconvenient dustproof and the relatively poor problem of leakproofness that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sample solution multi-gradient diluter comprises a diluting box, a placing groove and a shell, and also comprises a clamping structure for avoiding random shaking and shifting, a dustproof structure for avoiding sucking impurities such as dust and the like, and a sealing structure for avoiding generating gaps after long-time use;

the middle position of the bottom end in the shell is provided with placing grooves at equal intervals, and the clamping structures are arranged on two sides of the placing grooves;

the upper end of one side of the shell is provided with a PLC, the top end of the other side of the shell is provided with a driving motor, the output end of the driving motor is transversely provided with a lead screw extending to the top end inside the shell through a bearing, the surface of the lead screw is connected with a rod block in a threaded manner, the bottom end of the rod block is welded with a dilution box, the bottom end of the dilution box is vertically provided with suction gun heads extending to the outside of the dilution box at equal intervals, and the dustproof structure is arranged at the lower end inside the suction gun heads;

the sealing structure is arranged at the bottom end of the surface of the suction gun head;

first pneumatic telescopic link is installed to the both sides on the inside top of dilution box, and the inside sliding connection of dilution box of first pneumatic telescopic link output has the adjustable shelf, the intermediate position department on adjustable shelf top installs the pneumatic telescopic link of second, and the pneumatic telescopic link output of second installs the fly leaf that extends to the adjustable shelf inside, equidistant vertical installation in fly leaf bottom extends to the inside movable rod of absorption rifle head, and the inside sliding connection of absorption rifle head of movable rod bottom has the piston.

Preferably, the sealing structure comprises a sealing gasket, the sealing gasket is arranged at the bottom end of the surface of the suction gun head, the end, away from the suction gun head, of the sealing gasket is equidistantly provided with a through groove, a fixing spring is arranged at one end of the inside of the through groove, one end of the fixing spring is slidably connected with a connecting block extending to the outside of the through groove, and a lug is arranged at one end of the connecting block.

Preferably, the clamping structure includes grip block, activity case, centre gripping groove, centre gripping spring, threaded rod and grip block, the threaded rod rotates the intermediate position department of connection in the standing groove both sides, and threaded rod one side extends to the standing groove inside and installs the activity case through the bearing, the centre gripping groove has been seted up to one side of activity incasement portion equidistant, and the centre gripping spring is installed to the one end of centre gripping inslot portion, centre gripping spring one side sliding connection has the grip block that extends to the activity incasement portion, and one side of grip block installs the grip block.

Preferably, the clamping plates are arc-shaped and are symmetrically distributed about the vertical central axis of the placing groove.

Preferably, dustproof construction includes spacing groove, spacing spring, stopper, spacing hole, sealed piece and dust screen, sealed piece sets up the lower extreme at absorption rifle head one end, and sealed piece inside top and bottom have seted up spacing hole, sealed piece one end is installed and is extended to the dust screen that absorbs rifle head inside, and the inside spacing groove of having seted up of absorption rifle head of sealed piece top and bottom, spacing spring is installed to the one end of spacing inslot portion, and spacing spring top sliding connection have with spacing hole matched with stopper.

Preferably, the top end of the inner wall of the shell is transversely provided with a sliding groove, the sliding groove is connected with a sliding block in a sliding mode, and the bottom end of the sliding block is welded to the top end of the rod block.

Preferably, the shape of the sealing gasket is a circular truncated cone shape, and the outer diameter of the cross section of the top end of the sealing gasket is larger than that of the cross section of the top end of the sealing gasket.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) by arranging the clamping structure and the placing groove, the movable box moves oppositely by rotating the threaded rod, so that the clamping plate is driven to clamp three groove bodies, namely the suction pipe placing groove, the dilution culture groove and the collecting groove, and the clamping block is made to slide and compress the clamping spring, so that the clamping and mounting stability of the groove bodies is improved by utilizing the elasticity of the clamping spring, the accidental shaking of the groove bodies in the using process is avoided, the sampling and lofting precision is further influenced, the precision of dilution ratio is reduced, and the failure of dilution work is caused in serious cases;

(2) through the arrangement of the dustproof structure, the suction gun head which is not clamped with the suction head filters impurities such as dust and the like by arranging the dustproof net in the working process of the device, so that the impurities such as the dust and the like are prevented from continuously rising to further influence the normal work of the device, the service life of the device is reduced, meanwhile, the limiting block can be periodically stirred to slide until the limiting block is completely separated from the limiting hole, and then the dustproof net is taken out and cleaned through the sealing block, so that the impurities such as the dust and the like are prevented from being blocked, the suction force of negative pressure is reduced, and the effect of sucking a solution is influenced;

(3) through being provided with sealed the pad, lug and logical groove, utilize the sealed pad of round platform type, make to absorb the head and absorb the rifle head and be connected more stably, and the leakproofness is better, simultaneously under fixed spring's spring action, make the connecting block remove and drive the lug and remove, make the sealing pad have the trend toward outer expansion all the time, and then can avoid long-time use to lead to sealed pad deformation excessive, lead to being connected the shakiness with the suction tube, and then influence its leakproofness, reduce the precision of diluting the sample.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1;

fig. 4 is a schematic view of the overlooking and enlarging structure of the placement groove of the present invention.

In the figure: 1. a first pneumatic telescopic rod; 2. a movable frame; 3. a dilution tank; 4. a PLC controller; 5. a clamping structure; 501. a clamping plate; 502. a movable box; 503. a clamping groove; 504. a clamping spring; 505. a threaded rod; 506. a clamping block; 6. a dust-proof structure; 601. a limiting groove; 602. a limiting spring; 603. a limiting block; 604. a limiting hole; 605. a sealing block; 606. a dust screen; 7. sucking a gun head; 8. a movable plate; 9. a placement groove; 10. a housing; 11. a drive motor; 12. a screw rod; 13. a chute; 14. a rod block; 15. a slider; 16. a second pneumatic telescopic rod; 17. a piston; 18. a movable rod; 19. a gasket; 20. a bump; 21. connecting blocks; 22. fixing the spring; 23. a through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, a multi-gradient sample solution diluter comprises a dilution box 3, a placement groove 9 and a shell 10, and further comprises a clamping structure 5 for avoiding random shaking and displacement, a dustproof structure 6 for avoiding sucking impurities such as dust and the like, and a sealing structure for avoiding generating gaps after long-term use;

the middle position of the bottom end in the shell 10 is provided with a placing groove 9 at equal intervals, and the clamping structures 5 are arranged at two sides of the placing groove 9;

the upper end of one side of the shell 10 is provided with a PLC 4, the type of the PLC 4 can be FX3SA-10MT-CM, the top end of the other side of the shell 10 is provided with a driving motor 11, the type of the driving motor 11 can be MV300/3, the output end of the driving motor 11 is transversely provided with a lead screw 12 extending to the top end inside the shell 10 through a bearing, the surface of the lead screw 12 is in threaded connection with a rod block 14, the bottom end of the rod block 14 is welded with a dilution box 3, the bottom end of the dilution box 3 is vertically provided with a suction gun head 7 extending to the outside of the dilution box 3 at equal intervals, and the dustproof structure 6 is arranged at the lower end inside the suction gun head 7;

the sealing structure is arranged at the bottom end of the surface of the suction gun head 7;

the two sides of the top end in the dilution box 3 are provided with first pneumatic telescopic rods 1, the type of each first pneumatic telescopic rod 1 can be XTL100, the dilution box 3 at the output end of each first pneumatic telescopic rod 1 is internally and slidably connected with a movable frame 2, the middle position of the top end of each movable frame 2 is provided with a second pneumatic telescopic rod 16, the type of each second pneumatic telescopic rod 16 can be CX-QC10-13, the output end of each second pneumatic telescopic rod 16 is provided with a movable plate 8 extending into the movable frame 2, the bottom end of each movable plate 8 is vertically provided with movable rods 18 extending into a suction gun head 7 at equal intervals, and the interior of the suction gun head 7 at the bottom end of each movable rod 18 is slidably connected with a piston 17;

referring to fig. 1-4, the sample solution multi-gradient diluter further comprises a sealing structure, the sealing structure comprises a sealing gasket 19, the sealing gasket 19 is mounted at the bottom end of the surface of the suction gun head 7, through grooves 23 are formed in the sealing gasket 19 at equal intervals at one end far away from the suction gun head 7, a fixing spring 22 is mounted at one end inside the through groove 23, one end of the fixing spring 22 is slidably connected with a connecting block 21 extending to the outside of the through groove 23, and a bump 20 is mounted at one end of the connecting block 21;

a sliding groove 13 is transversely formed in the top end of the inner wall of the shell 10, a sliding block 15 is connected to the inside of the sliding groove 13 in a sliding mode, and the bottom end of the sliding block 15 is welded to the top end of the rod block 14;

the shape of the sealing gasket 19 is a circular truncated cone, and the outer diameter of the cross section of the top end of the sealing gasket 19 is larger than that of the cross section of the top end of the sealing gasket 19;

specifically, as shown in fig. 1, fig. 2 and fig. 3, utilize the sealed pad 19 of round platform type, make to absorb the head and absorb rifle head 7 and be connected more stably, and the leakproofness is better, simultaneously under the spring action of fixed spring 22, make connecting block 21 remove and drive lug 20 and remove, make sealed pad 19 have the trend of outside expansion all the time, and then can avoid long-time use to lead to sealed pad 19 to warp excessively, and then influence its leakproofness, reduce the precision of diluting the sample, and utilize the inside slip of slider 15 at spout 13, guarantee the stationarity that pole piece 14 removed.

Example 2: the clamping structure 5 comprises a clamping plate 501, a movable box 502, a clamping groove 503, a clamping spring 504, a threaded rod 505 and a clamping block 506, wherein the threaded rod 505 is rotatably connected to the middle positions of the two sides of the placing groove 9, one side of the threaded rod 505 extends into the placing groove 9 and is provided with the movable box 502 through a bearing, the clamping grooves 503 are arranged at equal intervals on one side of the inner part of the movable box 502, the clamping spring 504 is arranged at one end of the inner part of the clamping groove 503, the clamping block 506 extending to the outer part of the movable box 502 is connected to one side of the clamping spring 504 in a sliding mode, and the clamping plate 501 is arranged on one side of the clamping block 506;

the clamping plate 501 is arc-shaped, and the clamping plate 501 is symmetrically distributed about the vertical central axis of the placing groove 9;

specifically, as shown in fig. 1, fig. 2 and fig. 4, by rotating the threaded rod 505, the movable box 502 moves in opposite directions, and then drives the clamping plate 501 to clamp the three groove bodies of the suction pipe placing groove, the dilution culture tank and the collecting groove, and makes the clamping block 506 slide and compress the clamping spring 504, so that the elastic force of the clamping spring 504 is utilized, the clamping installation stability of the groove bodies is improved, and the accidental shaking of the groove bodies in the using process is avoided, thereby influencing the sampling and lofting precision.

Example 3: the dustproof structure 6 comprises a limiting groove 601, a limiting spring 602, a limiting block 603, a limiting hole 604, a sealing block 605 and a dustproof net 606, the sealing block 605 is arranged at the lower end of one end of the suction gun head 7, the limiting hole 604 is formed in the top end and the bottom end of the sealing block 605, the dustproof net 606 extending into the suction gun head 7 is installed at one end of the sealing block 605, the limiting groove 601 is formed in the suction gun head 7 at the top end and the bottom end of the sealing block 605, the limiting spring 602 is installed at one end of the limiting groove 601, and the top end of the limiting spring 602 is slidably connected with the limiting block 603 matched with the limiting hole 604;

specifically, as shown in fig. 1, fig. 2 and fig. 3, the suction gun head 7 which is not clamped with the suction head is arranged in the working process of the device, impurities such as dust are filtered by arranging the dust screen 606, the impurities such as dust are prevented from continuously rising, the normal work of the device is further influenced, meanwhile, the limiting block 603 can be regularly shifted to slide to be completely separated from the limiting hole 604, then the dust screen 606 is taken out and cleaned through the sealing block 605, the impurities such as dust are prevented from blocking the dust screen, and the effect of sucking the solution is influenced.

The output end of the PLC 4 is electrically connected with the input ends of the first pneumatic telescopic rod 1, the driving motor 11 and the second pneumatic telescopic rod 16 through wires.

The working principle is as follows: when the device is used, firstly, a suction pipe placing groove, a dilution culture groove and a collecting groove are sequentially placed in the placing groove 9, then a threaded rod 505 is sequentially rotated, so that the movable boxes 502 move oppositely, the clamping plates 501 are driven to clamp three groove bodies, the clamping blocks 506 slide in the clamping grooves 503 to compress the clamping springs 504, the clamping and mounting stability of the groove bodies is improved by the aid of the elastic force of the clamping springs 504, accidental shaking of the groove bodies in the using process is avoided, and sampling and lofting accuracy is reduced;

then, an external power supply is connected, the driving motor 11 is started to drive the screw rod 12 to rotate, the screw rod 12 is in threaded fit with the rod block 14, the rod block 14 is made to move to drive the dilution box 3 to move towards the suction tube placing groove, then the first pneumatic telescopic rod 1 is started to enable the movable frame 2 to descend, and further the bottom end of the suction gun head 7 is driven to be in contact with the top of the suction tube, meanwhile, the circular truncated cone-shaped sealing gasket 19 is used, so that the connection between the suction head and the suction gun head 7 is more stable, the sealing performance is better, meanwhile, under the elastic action of the fixed spring 22, the connecting block 21 is made to move to drive the lug 20 to move, a certain force is always applied to the sealing gasket 19, the sealing gasket 19 always has the tendency of outward expansion, and further the phenomenon that the sealing gasket 19 is excessively deformed due to long-time use and the sealing performance of the sealing gasket 19 is further influenced can be avoided;

then, the second pneumatic telescopic rod 16 is started to enable the movable plate 8 to move, the movable rod 18 is driven to slide in the suction gun head 7 to drive the piston 17 to move, negative pressure is generated in the suction gun head 7, sample liquid is sucked into the suction gun head 7, then, the first pneumatic telescopic rod 1 is started to enable the movable frame 2 to move to drive the suction head to ascend, then, the driving motor 11 is started to enable the dilution box 3 to move towards the dilution culture tank, the first pneumatic telescopic rod 1 is started again to enable the suction head to descend to a proper position, the second pneumatic telescopic rod 16 is started to inject the sample solution in the suction head, then, suction is carried out, the operation is repeated for several times, the sample liquid and the dilution liquid are fully mixed, then, the first pneumatic telescopic rod 1 works to drive the dilution box 3 to ascend, then, the dilution box 3 is moved to a collection tank through the driving motor 11, and the used suction head is manually taken down, then repeating the above operations, taking a new suction head, sucking a certain amount of injected solution in the dilution culture tank, then re-injecting the solution into a new diluent, and repeating the operations for several times to realize the dilution with various gradients;

simultaneously with the absorption rifle head 7 of absorption head block, in the device working process, through setting up dust screen 606, filter impurity such as dust, avoid impurity such as dust to continue to rise, and then influence the normal work of device, can stir stopper 603 regularly simultaneously for stopper 603 slides in spacing groove 601 inside and compresses spacing spring 602 to breaking away from spacing hole 604 completely, later takes out dust screen 606 and washs through sealed piece 605, guarantees the suction of negative pressure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A sample solution multi-gradient diluter comprising a dilution box (3), a placement tank (9) and a housing (10), characterized in that: the device also comprises a clamping structure (5) for avoiding random shaking and displacement, a dustproof structure (6) for avoiding sucking impurities such as dust and the like, and a sealing structure for avoiding generating gaps after long-time use;

the middle position of the bottom end in the shell (10) is provided with a placing groove (9) at equal intervals, and the clamping structures (5) are arranged on two sides of the placing groove (9);

the upper end of one side of the shell (10) is provided with the PLC (4), the top end of the other side of the shell (10) is provided with the driving motor (11), the output end of the driving motor (11) is transversely provided with a screw rod (12) extending to the top end inside the shell (10) through a bearing, the surface of the screw rod (12) is in threaded connection with a rod block (14), the bottom end of the rod block (14) is welded with the dilution box (3), the bottom end of the dilution box (3) is vertically provided with suction gun heads (7) extending to the outside of the dilution box (3) at equal intervals, and the dustproof structure (6) is arranged at the lower end inside the suction gun heads (7);

the sealing structure is arranged at the bottom end of the surface of the suction gun head (7);

first pneumatic telescopic link (1) is installed to the both sides on the inside top of dilution case (3), and the inside sliding connection of dilution case (3) of first pneumatic telescopic link (1) output has adjustable shelf (2), intermediate position department on adjustable shelf (2) top installs second pneumatic telescopic link (16), and second pneumatic telescopic link (16) output installs fly leaf (8) that extend to adjustable shelf (2) inside, fly leaf (8) bottom equidistant vertical installation extends to and absorbs inside movable rod (18) of rifle head (7), and the inside sliding connection of absorption rifle head (7) of movable rod (18) bottom has piston (17).

2. A sample solution multi-gradient diluter as claimed in claim 1, characterized in that: seal structure is including sealed pad (19), sealed pad (19) are installed in the bottom of absorbing rifle head (7) surface, and sealed pad (19) inside keep away from that to absorb rifle head (7) one end is equidistant to seted up logical groove (23), fixed spring (22) are installed to the inside one end of logical groove (23), and fixed spring (22) one end sliding connection has connecting block (21) that extend to logical groove (23) outside, lug (20) are installed to the one end of connecting block (21).

3. A sample solution multi-gradient diluter as claimed in claim 1, characterized in that: clamping structure (5) include grip block (501), activity case (502), centre gripping groove (503), centre gripping spring (504), threaded rod (505) and grip block (506), threaded rod (505) rotate to be connected in the intermediate position department of standing groove (9) both sides, and threaded rod (505) one side extends to standing groove (9) inside and installs activity case (502) through the bearing, grip groove (503) have been seted up to the equidistant one side of activity case (502) inside, and grip spring (504) are installed to the inside one end of centre gripping groove (503), grip spring (504) one side sliding connection has grip block (506) that extend to activity case (502) outside, and grip block (501) are installed to one side of grip block (506).

4. A sample solution multi-gradient diluter as claimed in claim 3, characterized in that: the clamping plates (501) are arc-shaped, and the clamping plates (501) are symmetrically distributed about the vertical central axis of the placing groove (9).

5. A sample solution multi-gradient diluter as claimed in claim 1, characterized in that: dustproof construction (6) include spacing groove (601), spacing spring (602), stopper (603), spacing hole (604), sealed piece (605) and dust screen (606), sealed piece (605) set up the lower extreme of absorbing rifle head (7) one end, and sealed piece (605) inside top and bottom seted up spacing hole (604), sealed piece (605) one end is installed and is extended to absorbing rifle head (7) inside dust screen (606), and sealed piece (605) top and bottom absorb rifle head (7) inside and seted up spacing groove (601), spacing spring (602) are installed to the inside one end of spacing groove (601), and spacing spring (602) top sliding connection have with spacing hole (604) matched with stopper (603).

6. A sample solution multi-gradient diluter as claimed in claim 1, characterized in that: the top of casing (10) inner wall has transversely seted up spout (13), and the inside sliding connection of spout (13) has slider (15), the bottom and the pole piece (14) top welding of slider (15).

7. A sample solution multi-gradient diluter as claimed in claim 2, characterized in that: the shape of the sealing gasket (19) is a round table shape, and the outer diameter of the cross section of the top end of the sealing gasket (19) is larger than that of the cross section of the top end of the sealing gasket (19).

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