CN209715140U - A kind of senior middle school is biochemical to use liquid storage device - Google Patents

Abstract

The utility model discloses a kind of biochemical liquid storage devices of senior middle school, including cushion socket, liquid storage cylinder, hydrops ball and negative pressure cylinder, negative pressure cylinder inner wall slidably connects piston plate, reset spring is fixedly installed between piston plate downside and negative pressure cylinder bottom wall, piston rod is fixedly connected on the upside of piston plate, piston rod is placed in the outside of negative pressure cylinder far from one end of piston plate, the side of negative pressure cylinder is embedded with No.1 check valve, steam hose is connected between negative pressure cylinder and hydrops ball, one end of steam hose close to negative pressure cylinder is fixedly installed with No. two check valves, the inner wall of cushion socket slidably connects vibration damper plate, vibration damper plate is fixedly installed with several damping springs in two sides up and down, a kind of senior middle school of the utility model is biochemical to use liquid storage device, in specific use, constantly pressing piston rod, the experimental liquid in liquid storage cylinder can be extracted, hydrops ball Experimental liquid can be stored, the gas in pipette and communicating pipe will enter negative pressure cylinder along steam hose.

Description

A kind of senior middle school is biochemical to use liquid storage device

Technical field

The utility model relates to a kind of liquid storage device, in particular to a kind of senior middle school is biochemical to use liquid storage device, Belong to equipment of chemical industry technical field.

Background technique

Chemistry is the important subject of senior middle school's study, and biochemical existing senior middle school with liquid storage device is mostly graduated glass bottle, Graduated glass bottle curved surface is equipped with fluid level scale, and student can calculate sampling according to the height that liquid level declines, however take reality When testing liquid, student is difficult to hold taken amount, this, which just will appear, samples excessive or very few problem, be unfavorable for experimental learning into Row.

Utility model content

The purpose of this utility model is to provide a kind of biochemical liquid storage devices of senior middle school, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of senior middle school is biochemical to be filled with liquid storage It sets, including cushion socket, liquid storage cylinder, hydrops ball and negative pressure cylinder, the negative pressure cylinder inner wall slidably connects piston plate, the piston plate It is fixedly installed with reset spring between downside and negative pressure cylinder bottom wall, piston rod, institute are fixedly connected on the upside of the piston plate The outside that piston rod is placed in negative pressure cylinder far from one end of piston plate is stated, the side of the negative pressure cylinder is embedded with No.1 check valve, institute It states and is connected with steam hose between negative pressure cylinder and hydrops ball, one end of the steam hose close to negative pressure cylinder is fixedly installed with No. two Check valve, the inner wall of the cushion socket slidably connect vibration damper plate, and the vibration damper plate is fixedly installed with several subtract in two sides up and down Spring is shaken, is fixedly installed with mounting base on the upside of the vibration damper plate, the upside screw of the mounting base is fixed with liquid storage cylinder, described The curved surface of liquid storage cylinder is equipped with fluid level scale, and inlet tube and adjustment barrel are embedded on the upside of the liquid storage cylinder, and the inlet tube is solid Dingan County is equipped with liquid feed valve, and the inside of the adjustment barrel is equipped with movable block, is fixedly installed with pipette on the downside of the movable block, institute It states and offers sliding slot on the curved surface of pipette, the inside of the movable block offers threaded hole, is socketed with spiral shell in the threaded hole Rasp bar, the movable block are rotatablely connected by shaft and threaded rod, and one end of the threaded rod is fixedly installed with across movable block Knob, is connected with communicating pipe and bracket between the adjustment barrel and hydrops ball, one end that the communicating pipe is located in adjustment barrel is set In in sliding slot, it is fixedly connected with outlet tube on the downside of the hydrops ball, is fixedly installed with liquid valve in the middle part of the outlet tube.

Preferably, the threaded rod is threadedly coupled with movable block.

Preferably, the inner wall radius of exterior radius with pipette of the communicating pipe is identical.

Preferably, the adjustment barrel inner wall is slidably connected with movable block.

Preferably, the pipette far from movable block one end pass through adjustment barrel be placed in liquid storage cylinder, the adjustment barrel with Pipette is slidably connected.

Compared with prior art, the utility model has the beneficial effects that a kind of senior middle school of the utility model is biochemical to use liquid Storing unit has internal structure design reasonable, takes the feature that liquid is accurate, can specific in use, constantly press piston rod The experimental liquid in liquid storage cylinder is extracted, hydrops ball can store experimental liquid, and the gas in pipette and communicating pipe will be soft along ventilating Pipe enters negative pressure cylinder, and pipette is adjustable height, is avoided that experimental liquid samples excessive or very few problem, takes liquid precision high, Damping spring has shock absorbing effect, can enhance the stability of liquid storage cylinder.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the schematic diagram of internal structure of the utility model adjustment barrel；

Fig. 3 is the attachment structure schematic diagram of the utility model pipette and communicating pipe；

Fig. 4 is the structural schematic diagram of the utility model movable block；

Fig. 5 is schematic enlarged-scale view at the A of the utility model Fig. 1.

In figure: 1, cushion socket；2, liquid storage cylinder；3, hydrops ball；4, negative pressure cylinder；5, piston rod；6, piston plate；7, bullet is resetted Spring；8, No.1 check valve；9, No. two check valves；10, steam hose；11, outlet tube；12, liquid valve；13, communicating pipe；14, it adjusts Save cylinder；15, inlet tube；16, liquid feed valve；17, vibration damper plate；18, damping spring；19, mounting base；20, fluid level scale；21, imbibition Pipe；22, sliding slot；23, threaded hole；24, movable block；25, knob；26, threaded rod；27, bracket.

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.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of biochemical liquid storage device of senior middle school, Including cushion socket 1, liquid storage cylinder 2, hydrops ball 3 and negative pressure cylinder 4,4 inner wall of negative pressure cylinder slidably connects piston plate 6,6 downside of piston plate Reset spring 7 is fixedly installed between 4 bottom wall of face and negative pressure cylinder, the upside of piston plate 6 is fixedly connected with piston rod 5, piston rod 5 One end far from piston plate 6 is placed in the outside of negative pressure cylinder 4, and the side of negative pressure cylinder 4 is embedded with No.1 check valve 8, negative pressure cylinder 4 and product Steam hose 10 is connected between liquid ball 3, one end of steam hose 10 close to negative pressure cylinder 4 is fixedly installed with No. two check valves 9, subtracts The inner wall of shake seat 1 slidably connects vibration damper plate 17, and about 17 two sides of vibration damper plate are fixedly installed with several damping springs 18, damping The upside of plate 17 is fixedly installed with mounting base 19, and the upside screw of mounting base 19 is fixed with liquid storage cylinder 2, on the curved surface of liquid storage cylinder 2 Equipped with fluid level scale 20, the upside of liquid storage cylinder 2 is embedded with inlet tube 15 and adjustment barrel 14, and inlet tube 15 is fixedly installed with liquid feed valve 16, the inside of adjustment barrel 14 is equipped with movable block 24, and the downside of movable block 24 is fixedly installed with pipette 21, the curved surface of pipette 21 On offer sliding slot 22, the inside of movable block 24 offers threaded hole 23, and threaded rod 26, movable block 24 are socketed in threaded hole 23 It is rotatablely connected by shaft and threaded rod 26, one end of threaded rod 26 passes through movable block 24 and is fixedly installed with knob 25, adjustment barrel Communicating pipe 13 and bracket 27 are connected between 14 and hydrops ball 3, one end that communicating pipe 13 is located in adjustment barrel 14 is placed in sliding slot 22 Interior, the downside of hydrops ball 3 is fixedly connected with outlet tube 11, and the middle part of outlet tube 11 is fixedly installed with liquid valve 12.

Threaded rod 26 is threadedly coupled with movable block 24, convenient for driving movable block 24, the exterior radius and imbibition of communicating pipe 13 The inner wall radius of pipe 21 is identical, has sealing function, and 14 inner wall of adjustment barrel is slidably connected with movable block 24, and pipette 21 is adjusted Highly, pipette 21 passes through adjustment barrel 14 far from one end of movable block 24 and is placed in liquid storage cylinder 2, and adjustment barrel 14 and pipette 21 are sliding Dynamic connection, can completely cut off the gas in liquid storage cylinder 2.

Specifically, when the utility model is used, a kind of senior middle school of the utility model is biochemical to use liquid storage device, have interior Portion is reasonable in design, takes the feature that liquid is accurate, opens liquid feed valve 16, can inject in liquid storage cylinder 2 experimental liquid, be then turned off Liquid feed valve 16 can avoid experimental liquid and react with air, and when experiment, student need to constantly press piston rod 5, reset spring 7 Piston plate 6 can be pushed to reset, in the process, steam hose 10 can constantly extract gas, and No. two check valves 9 are avoided that gas returns Gas can be discharged for stream, No.1 check valve 8, and negative pressure, turning knob 25, in the limit of adjustment barrel 14 can be formed in hydrops ball 3 Under effect, threaded rod 26 and the movable block 24 of threaded connection can interact, and movable block 24 can be enabled mobile, movable block 24 can drive Dynamic pipette 21 adjusts height, can slide in sliding slot 22 communicating pipe 13, and communicating pipe 13 connects mouth and liquid level face, in negative pressure cylinder Under the action of 4, experimental liquid can enter in hydrops ball 3 along pipette 21 and communicating pipe 13, and hydrops ball 3 can store experimental liquid, And the gas in pipette 21 and communicating pipe 13 will enter in negative pressure cylinder 4 along steam hose 10, it is complete to the liquid in communicating pipe 13 After entering in hydrops ball 3 entirely, liquid valve 12 is opened, damping spring 18 has shock absorbing effect, can enhance liquid storage cylinder 2 Stability in liquid storage cylinder 2 when air pressure deficiency, can be passed through inert gas, the availability of the permanent holding meanss of energy in right amount.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.

In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result, Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of senior middle school is biochemical to use liquid storage device, including cushion socket (1), liquid storage cylinder (2), hydrops ball (3) and negative pressure cylinder (4), which is characterized in that negative pressure cylinder (4) inner wall slidably connects piston plate (6), piston plate (6) downside and negative pressure It is fixedly installed with reset spring (7) between cylinder (4) bottom wall, is fixedly connected with piston rod (5), institute on the upside of the piston plate (6) The outside that piston rod (5) are placed in negative pressure cylinder (4) far from the one end of piston plate (6) is stated, the side of the negative pressure cylinder (4) is embedded with one Number check valve (8), is connected with steam hose (10), the steam hose (10) connects between the negative pressure cylinder (4) and hydrops ball (3) One end of nearly negative pressure cylinder (4) is fixedly installed with No. two check valves (9), and the inner wall of the cushion socket (1) slidably connects vibration damper plate (17), two sides are fixedly installed with several damping springs (18) vibration damper plate (17) up and down, the upside of the vibration damper plate (17) It is fixedly installed with mounting base (19), the upside screw of the mounting base (19) is fixed with liquid storage cylinder (2), the liquid storage cylinder (2) Curved surface is equipped with fluid level scale (20), is embedded with inlet tube (15) and adjustment barrel (14) on the upside of the liquid storage cylinder (2), it is described into Liquid pipe (15) is fixedly installed with liquid feed valve (16), and the inside of the adjustment barrel (14) is equipped with movable block (24), the movable block (24) it is fixedly installed on the downside of pipette (21), offers sliding slot (22), the movement on the curved surface of the pipette (21) The inside of block (24) offers threaded hole (23), is socketed with threaded rod (26) in the threaded hole (23), the movable block (24) It is rotatablely connected by shaft and threaded rod (26), one end of the threaded rod (26) passes through movable block (24) and is fixedly installed with knob (25), communicating pipe (13) and bracket (27), communicating pipe (13) position are connected between the adjustment barrel (14) and hydrops ball (3) It is placed in sliding slot (22) in one end in adjustment barrel (14), is fixedly connected with outlet tube (11), institute on the downside of the hydrops ball (3) It states and is fixedly installed with liquid valve (12) in the middle part of outlet tube (11).

2. a kind of senior middle school according to claim 1 is biochemical to use liquid storage device, it is characterised in that: the threaded rod (26) it is threadedly coupled with movable block (24).

3. a kind of senior middle school according to claim 1 is biochemical to use liquid storage device, it is characterised in that: the communicating pipe (13) exterior radius is identical as the inner wall radius of pipette (21).

4. a kind of senior middle school according to claim 1 is biochemical to use liquid storage device, it is characterised in that: the adjustment barrel (14) inner wall is slidably connected with movable block (24).

5. a kind of senior middle school according to claim 1 is biochemical to use liquid storage device, it is characterised in that: the pipette (21) one end far from movable block (24) passes through adjustment barrel (14) and is placed in liquid storage cylinder (2), the adjustment barrel (14) and pipette (21) it is slidably connected.