CN209646521U - A kind of novel laboratory ejection of syringe pump device advance seat - Google Patents

Abstract

The utility model discloses a kind of novel laboratory ejection of syringe pump device advance seat, including slide, half is female, elastic device and folding spanner, the slide is arranged on guiding mechanism, the folding spanner and slide are hinged, the folding spanner includes left limit portion, right limit portion and rake, half female top is fixed with slide unit, the slide unit is slidably connected with rake, elastic device is installed between the folding spanner and half mother, the left limit portion is not identical to slide hinged place distance and the right limit portion to slide hinged place distance, locating piece is provided on the rake；The laboratory ejection of syringe pump device of the utility model promotes holder structure simple and the enclasping force of half parent agency is strong, allows half parent agency to fast implement fitting and disengages movement.

Description

A kind of novel laboratory ejection of syringe pump device advance seat

Technical field

The utility model relates to laboratory syringe pump fields, push away more particularly to a kind of novel laboratory ejection of syringe pump device Into seat.

Background technique

Laboratory syringe pump is mainly used for fluid precise delivery, is particularly suitable for laboratory transmission variety classes, micro The precise delivery of fluid.Laboratory syringe pump generally use syringe serve as transmission liquid container, by syringe be loaded to After on syringe pump, syringe piston handle is driven to move forward and backward by the affiliated syringe advance seat of syringe pump to realize injection or extraction Fluid.

In the prior art, as shown in Figure 1, the power of syringe pump advance seat is typically derived from screw rod-nut transmission mechanism, Syringe pump advance seat is arranged on syringe pump guide rail, and nut is connected thereto, and guide rail is arranged on preceding support and rear support, with guiding Before homoaxial screw rod is also disposed on support and rear support, screw rod is driven to rotate by driving device, screw rod forward and reverse rotation, Syringe pump advance seat is driven to be moved forward and backward.

In the prior art, before syringe is loaded, need first to be moved to syringe pump promotion seat the position of syringe piston handle It sets, efficiently moves syringe pump advance seat for convenience, nut is generally configured to half parent structure, then is aided with other structures, comes real Screw rod is held in now half female efficiently disengaging tightly, can so be fast moved syringe advance seat, is allowed to be rapidly achieved syringe clamping Position facilitates the operation of laboratory syringe pump.

In the prior art, there is the syringe advance seat of half female folding function to be widely present, be as Figure 2-3 wherein one Kind common existing structure, the female, spring of operator's pressing the first half, half it is female be detached from screw rod, while can front and back adjust injection Device advance seat；Behind in-position, pressing is decontroled, spring reversely compresses half mother, partly female to be engaged again with screw rod.Similar knot Structure, it is desirable that higher machining accuracy, it is at high cost；Spring force size directly affects half mother and is engaged with screw flight, for half mother Structure does not loosen, and needs certain initial tension of spring, but increases pretightning force and just may require that increasing pressing force, the light and knot of operation The stabilization of structure forms contradiction；When adjusting syringe advance seat, pressing will continue, and half box thread and spiral shell may be made by slightly loosening Bar scratches, and mutual screw thread is be easy to cause to damage, and Continued depression is unfavorable for operating.

Utility model content

It is above-mentioned existing to solve the purpose of the utility model is to provide a kind of novel laboratory ejection of syringe pump device advance seat Technology there are the problem of, keep syringe pump operation in laboratory lighter, associated components machining accuracy reduced by the change of structure, Structure more optimizes simultaneously, increases economic benefit, reduces damage of the operation to part, extends the service life of syringe pump.

To achieve the above object, the utility model provides following scheme: the utility model provides a kind of novel laboratory Ejection of syringe pump device advance seat, including slide, half female, elastic device and folding spanner, the slide are arranged on guiding mechanism, The folding spanner and slide are hinged, and the folding spanner includes left limit portion, right limit portion and rake, half female top End is fixed with slide unit, and the slide unit is slidably connected with rake, is equipped with elastic device between the folding spanner and half mother, described Left limit portion is not identical to slide hinged place distance and the right limit portion to slide hinged place distance, is arranged on the rake There is locating piece.

Preferably, the rake is arc structure.

Preferably, the left limit portion, right limit portion and rake are integrally formed.

Preferably, the slide unit is sliding pin.

Preferably, the locating piece is arc groove.

Preferably, the elastic device is holddown spring.

The utility model discloses following technical effects:

1. the female open-and-close mechanism of the half of the utility model is by using special spanner structure, so that rapid operation and side Just, and enclasping force is good；

2. the syringe advance seat of the utility model is provided with half female positioning, when operation, does not need artificial ongoing operation；

3. half female inoperative with lead screw is worn when the syringe advance seat of the utility model avoids operation, extends and set Standby service life；

4. the syringe of the utility model promotes holder structure simple, increase economic benefit；

5. when injecting pump work, the syringe advance seat of the utility model will not bring any interference to working condition, Guarantee the stability of work.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without any creative labor, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is the structural schematic diagram of syringe pump in the prior art.

Fig. 2 is the female open-and-close mechanism closed state schematic diagram of syringe pump in the prior art half.

Fig. 3 is the female open-and-close mechanism open state schematic diagram of syringe pump in the prior art half.

Fig. 4 is the overall structure diagram of syringe pump in the utility model.

Fig. 5 is the laboratory injecting pump structure schematic diagram of the utility model syringe advance seat partly cut-away.

Fig. 6 is the closed state diagrammatic cross-section of syringe advance seat in the utility model.

Fig. 7 is syringe advance seat open state diagrammatic cross-section in the utility model.

Fig. 8 is the lateral diagrammatic cross-section of syringe advance seat in the utility model.

Fig. 9 is the structural schematic diagram that spanner is opened and closed in the utility model.

Wherein, 1- syringe pump main body；Support before 2-；3- rear support；4- guiding mechanism；5- screw rod；6- syringe pump advance seat； 7- nut；8- the first half is female；9- spring；10- slide；11- half is female；12- holddown spring；13- slide unit；14- rake；15- is left Limiting section；16- right limit portion；17- arc groove.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have Body embodiment is described in further detail the utility model.

Referring to Fig. 4-9, the utility model provides a kind of novel laboratory ejection of syringe pump device advance seat, including slide 10, Half mother 11, elastic device and folding spanner, wherein slide 10 is arranged on guiding mechanism 4, and folding spanner and slide 10 are hinged, opens Closing spanner includes left limit portion 15, right limit portion 16 and rake 14, and the top of half mother 11 is fixed with slide unit 13, slide unit 13 with incline Inclined portion 14 is slidably connected, and opens and closes and is equipped with elastic device, left limit portion 15 to 10 hinged place distance of slide between spanner and half mother 11 Not identical as right limit portion 16 to 10 hinged place of slide distance, when slide unit 13 slides to left limit portion 15, half mother 11 and screw rod 5 are de- From syringe advance seat can freely adjust on guiding mechanism 4, to facilitate syringe to be adjusted, that is, adjust position or add Add injecting fluid, when slide unit 13 slides to right limit portion 16, half mother 11 and 5 fitting of screw rod realize that syringe advance seat power drives It is dynamic；It is provided with locating piece on rake 14, when slide unit 13 moves on rake 14, slide unit 13 can be locked, so that Slide unit 13 is not easy to loosen back and forth, prevents half mother 11 from dropping down on screw rod 5, causes the abrasion of half mother 11 and screw rod 5, improves laboratory note Penetrate the service life of pump.

Scheme is advanced optimized, in order to enable 13 sliding trace of slide unit more mitigates, so that slide unit 13 can be accurate Ground engages with locating piece, sets arc structure for rake 14.

Advanced optimize scheme, in order to enable folding spanner and 13 cooperative movement of slide unit it is more convenient, by left limit portion 15, Right limit portion 16 is an integral molding structure with the setting of rake 14, not only can guarantee that slide unit 13 is sliding on rake 14 It is dynamic, due to being provided with left limit portion 15 and right limit portion 16, can also not only be mentioned in order to limit folding spanner rotation angle The accuracy of high slide unit 13 and locating piece cooperation.

Scheme is advanced optimized, slide unit 13 uses wear-resisting sliding pin, can reduce the wear intensity between slide unit 13 and rake 14, And then improve the service life of laboratory syringe pump.

Scheme is advanced optimized, in order to enable slide unit 13 can be used cooperatively with locating piece securely, locating piece is arranged It for arc groove 17, can be engaged when slide unit 13 slides in arc groove 17 in this way, while the elasticity dress of 14 lower section of rake It sets and applies pressing force to rake 14, so that slide unit 13 is tightly fastened in arc groove 17, being not easy to loosen to disengage causes half mother 11 fall, and avoid wearing between half mother 11 and screw rod 5 and causing components damage.

When needing that slide 10 is allow freely to adjust position on guiding mechanism 4, rotating folding spanner overcomes holddown spring 12 elastic force make slide unit 13 slide to right limit portion 16, at this point, driving lower half mother 11 to be detached from screw rod 5 in slide unit 13, so that slide 10 can Freely to be adjusted on guiding mechanism 4；When needing to push syringe piston handle using slide 10, slide 10 is slided into note first Emitter piston handle front end, rotating folding spanner make slide unit 13 slide to left limit portion 15, at this point, driving lower half mother 11 in slide unit 13 With 5 fitting of screw rod, the power drive of syringe advance seat is realized, so that slide 10 pushes shifting movement before piston handle, and then complete real Test the liquid injection of room syringe pump.

In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.

Embodiment described above is only that the preferred embodiment of the utility model is described, not to the utility model Range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are practical new to this The various changes and improvements that the technical solution of type is made should all fall into the protection scope that the utility model claims book determines It is interior.

Claims (6)

1. a kind of novel laboratory ejection of syringe pump device advance seat, it is characterised in that: including slide (10), half female (11), elasticity Device and folding spanner, the slide (10) are arranged on guiding mechanism (4), the folding spanner with slide (10) hingedly, institute Stating folding spanner includes left limit portion (15), right limit portion (16) and rake (14), and the top of half female (11) is fixed with Slide unit (13), the slide unit (13) are slidably connected with rake (14), install between the folding spanner and half female (11) flexible Device, the left limit portion (15) to slide (10) hinged place distance and the right limit portion (16) to slide (10) hinged place away from It is identical from not, locating piece is provided on the rake (14).

2. novel laboratory ejection of syringe pump device advance seat according to claim 1, it is characterised in that: the rake It (14) is arc structure.

3. novel laboratory ejection of syringe pump device advance seat according to claim 1, it is characterised in that: the left limit portion (15), right limit portion (16) and rake (14) are integrally formed.

4. novel laboratory ejection of syringe pump device advance seat according to claim 1, it is characterised in that: the slide unit (13) For sliding pin.

5. novel laboratory ejection of syringe pump device advance seat according to claim 1, it is characterised in that: the locating piece is Arc groove (17).

6. novel laboratory ejection of syringe pump device advance seat according to claim 1, it is characterised in that: the elastic device For holddown spring (12).