CN215611669U - Reagent dropper for children test - Google Patents

Abstract

The utility model discloses a reagent dropper for a child test, which comprises a dropper, wherein a protective pad is arranged on the side surface of the dropper, a first stretching rod is fixedly connected to the side surface of the protective pad, a spring is fixedly connected inside the first stretching rod, a second stretching rod is fixedly connected to one end, far away from the first stretching rod, of the spring, and a plastic plate is fixedly connected to one end, far away from the spring, of the second stretching rod. According to the utility model, the second stretching rod is pulled to one side through the first stretching rod, the second stretching rod, the spring and the plastic plate, so that the second stretching rod can pull the spring, the second stretching rod can extend out of the first stretching rod, the length of the second stretching rod can be adjusted, the plastic plate can be driven to move when the second stretching rod moves, a bottle or a test tube for placing a reagent can be clamped by the plastic plate, and therefore, when a child uses the dropper, the dropper is not easy to incline to cause reagent waste.

Description

Reagent dropper for children test

Technical Field

The utility model relates to the field of reagent droppers, in particular to a reagent dropper for a child test.

Background

Burette fat tripe burette and burette commonly used divide comprises rubber nipple and sharp mouth glass pipe, and the burette extensively applies to in the chemical experiment teaching, and present burette includes glass's burette body usually and sets up the bag that drips on the burette body, makes it to extract into the burette originally internally through dripping the bag to make things convenient for people to do the experiment.

A piston pump-out dropper dispenser such as that described in CN204568430U, although solving the problem of ageing, has the following drawbacks:

1. the reagent bottle has no function of fixing the dropper, so that the stability is poor when a child extracts or discharges the reagent, and the dropper is easy to incline to cause reagent waste.

2. The phenomenon that the dropper slides off the hand to be damaged easily is caused because the dropper cannot be used correctly when the age of the child is too small.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a reagent dropper for a child test.

In order to achieve the purpose, the utility model adopts the following technical scheme: a reagent dropper for a child test comprises a dropper, wherein a protective pad is arranged on the side surface of the dropper, and a first stretching rod is fixedly connected to the side surface of the protective pad;

a spring is fixedly connected inside the first stretching rod, one end of the spring, which is far away from the first stretching rod, is fixedly connected with a second stretching rod, and one end of the second stretching rod, which is far away from the spring, is fixedly connected with a plastic plate;

the upper surface of the dropper is connected with a connecting pipe in an embedded manner, the connecting pipe is arranged in a hollow manner, and one end of the connecting pipe, which is far away from the dropper, is connected with a hollow pipe in a threaded manner;

a cross rod is arranged on the side surface of the hollow pipe, a finger ring is fixedly connected to one end, far away from the hollow pipe, of the cross rod, and a connecting plate is connected to the interior of the finger ring in a sliding mode;

the inside of finger ring is located the top fixedly connected with regulating plate of connecting plate, the inside of regulating plate is equipped with the spout, the inside sliding connection of spout has the slider.

As a further description of the above technical solution:

one end of the connecting pipe close to the dropper is fixedly connected with a sealing ring, and the diameter of the sealing ring is smaller than that of the connecting pipe.

As a further description of the above technical solution:

the connecting pipe is close to the first threaded rod of one end fixedly connected with of hollow tube, and first threaded rod and hollow tube threaded connection, first threaded rod is hollow setting.

As a further description of the above technical solution:

the side surface of the plastic plate is provided with a rubber pad, and the side surface of the sliding block is provided with a threaded hole.

As a further description of the above technical solution:

the inside gomphosis of spout is connected with the gag lever post, and the gag lever post is connected with the slider laminating.

As a further description of the above technical solution:

one end of the limiting rod, far away from the sliding groove, is fixedly connected with a baffle.

As a further description of the above technical solution:

the inside left side threaded connection who is located the gag lever post of baffle has the second threaded rod, and second threaded rod and slider threaded connection.

As a further description of the above technical solution:

and one end of the hollow pipe, which is far away from the first threaded rod, is provided with a drip bag.

The utility model has the following beneficial effects:

1. compared with the prior art, reagent burette for children's experiments, first tensile pole through the installation, the tensile pole of second, spring and plastic slab, pull the tensile pole of second to one side and move, make the tensile pole of second can drag the spring, the tensile pole of second can stretch out from the inside of first tensile pole, thereby make the length of second tensile pole can adjust, can drive the plastic slab when the tensile pole of second removes, make the plastic slab can press from both sides the bottle or the test tube of placing reagent and press from both sides tightly, thereby make children when using the burette, the burette is difficult for taking place the slope and causes reagent extravagant.

2. Compared with the prior art, reagent burette for children's experiments, finger ring through the installation, the regulating plate, the slider, gag lever post and second threaded rod, place children's middle finger and ring finger into the finger ring, can be to promoting the finger ring according to children's finger's thickness, make the slider can adjust the size of adversary's ring in the inside slip of spout, after finger ring regulation finishes, utilize the gag lever post can block the slider, can fix the slider through the second threaded rod, make children can correctly use the burette, avoid the burette to cause the damage, make children when using the burette simultaneously, the burette is difficult for following the landing on hand.

3. Compared with the prior art, the reagent dropper for the child test has the advantages that the dropper can be disassembled through the installed connecting pipe, the sealing ring and the first threaded rod, the first threaded rod can be screwed to be separated from the hollow pipe after the dropper is used, the connecting pipe is pulled to be separated from the dropper, the dropper is relatively comprehensive when cleaned, and the service life of the dropper can be prolonged.

Drawings

FIG. 1 is a schematic view of an overall structure of a reagent dropper for children experiments according to the present invention;

FIG. 2 is a schematic structural diagram of a reagent dropper for children test shown in FIG. 1, the dropper being shown in FIG. 1;

FIG. 3 is a schematic diagram of an internal structure of a first stretching rod of the reagent dropper for children experiments according to the present invention;

FIG. 4 is a schematic view of an adjusting plate of the reagent dropper for children test according to the present invention;

fig. 5 is a schematic diagram of a baffle structure of a reagent dropper for children experiments according to the present invention.

Illustration of the drawings:

1. a plastic panel; 2. a second stretch rod; 3. a first stretching rod; 4. a dropper; 5. a seal ring; 6. a connecting pipe; 7. a rubber pad; 8. dripping a sac; 9. a hollow tube; 10. a first threaded rod; 11. an adjusting plate; 12. a chute; 13. a second threaded rod; 14. a baffle plate; 15. finger rings; 16. a connecting plate; 17. a spring; 18. a slider; 19. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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.

Referring to fig. 1 to 5, the present invention provides a reagent dropper for a child test, comprising: including burette 4, the side surface of burette 4 is provided with the protection pad, the first tensile pole 3 of side surface fixedly connected with of protection pad, make the inside that the gomphosis of the tensile pole 2 of second advances first tensile pole 3, the inside fixedly connected with spring 17 of first tensile pole 3, utilize spring 17 to make the length of the tensile pole 2 of second adjust, the tensile pole 2 of one end fixedly connected with second that first tensile pole 3 was kept away from to spring 17, the tensile pole 2 of second is kept away from the one end fixedly connected with plastic slab 1 of spring 17, when burette 4 need discharge away the reagent of inside, plastic slab 1 can press from both sides the test tube tightly, thereby it leads to the fact the waste to appear the slope when can avoiding the reagent discharge in the burette 4, the side surface of plastic slab 1 is provided with rubber pad 7, frictional force between multiplicable plastic slab 1 and the test tube, make plastic slab 1 comparatively stable when pressing from both sides the test tube tightly.

The lateral surface of the hollow tube 9 is provided with a cross bar, one end of the cross bar, which is far away from the hollow tube 9, is fixedly connected with a finger ring 15, when the dropper 4 is used, a middle finger and a ring finger of a child can be placed in the finger ring 15, so that the child can use the dropper 4 stably, the inside of the finger ring 15 is connected with a connecting plate 16 in a sliding manner, the inside of the finger ring 15 is positioned above the connecting plate 16 and is fixedly connected with an adjusting plate 11, the inside of the adjusting plate 11 is provided with a sliding groove 12, the inside of the sliding groove 12 is connected with a sliding block 18 in a sliding manner, so that the size of the finger ring 15 can be adjusted, the finger ring 15 can be suitable for fingers with different thicknesses, the lateral surface of the sliding block 18 is provided with a threaded hole, the inside of the sliding groove 12 is connected with a limiting rod 19 in an embedding manner, the limiting rod 19 is connected with the sliding block 18 in an attaching manner, one end of the limiting rod 19, which is far away from the sliding groove 12, the inside of the limiting rod 14 is positioned on the left side of the limiting rod 19 and is connected with a second threaded rod 13, and the second threaded rod 13 is in threaded connection with the sliding block 18, and when the finger ring 15 is adjusted in size and contacted, the sliding block 18 can be fixed by the second threaded rod 13.

One end fixedly connected with sealing washer 5 that connecting pipe 6 is close to burette 4, and the diameter of sealing washer 5 is less than connecting pipe 6, connecting pipe 6 is close to the first threaded rod 10 of one end fixedly connected with of hollow tube 9, and first threaded rod 10 and hollow tube 9 threaded connection, first threaded rod 10 is hollow setting, make and to dismantle between the burette 4, after burette 4 uses, make people conveniently wash burette 4, thereby can improve burette 4's life, avoid burette 4 to receive to remain reagent corrosion to cause the damage, the one end that first threaded rod 10 was kept away from to hollow tube 9 is provided with drip bag 8, pinch drip bag 8 and make in the reagent can the extraction gets into burette 4.

The working principle is as follows: the middle finger and the ring finger of the child are placed in the finger ring 15, the size of the finger ring 15 can be adjusted according to the thickness of the finger, the finger ring 15 is pushed to enable the finger ring 15 to move, after the size adjustment of the finger ring 15 is finished, the limiting rod 19 can be used for limiting the sliding block 18, the sliding block 18 is blocked, the second threaded rod 13 is screwed to enable the second threaded rod 13 to fix the sliding block 18, the second stretching rod 2 is pulled to enable the second stretching rod 2 to pull the spring 17, the second stretching rod 2 can extend out from the inner part of the first stretching rod 3, the plastic plate 1 can clamp a bottle or a test tube in which a reagent is placed, so that when the dropper 4 is reused by the child, the dropper 4 is not prone to incline to cause reagent waste, after the dropper 4 is used, the connecting pipe 6 is screwed to enable the first threaded rod 10 to be separated from the hollow pipe 9, the connecting pipe 6 is pulled upwards, the sealing ring 5 can be separated from the dropper 4, so that the dropper 4 can be disassembled, and the dropper 4 can be cleaned comprehensively.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a reagent burette for children's experiments, includes burette (4), its characterized in that: a protective pad is arranged on the side surface of the dropper (4), and a first stretching rod (3) is fixedly connected to the side surface of the protective pad;

a spring (17) is fixedly connected inside the first stretching rod (3), one end, far away from the first stretching rod (3), of the spring (17) is fixedly connected with a second stretching rod (2), and one end, far away from the spring (17), of the second stretching rod (2) is fixedly connected with a plastic plate (1);

the upper surface of the dropper (4) is connected with a connecting pipe (6) in an embedded mode, the connecting pipe (6) is arranged in a hollow mode, and one end, far away from the dropper (4), of the connecting pipe (6) is connected with a hollow pipe (9) in a threaded mode;

a cross rod is arranged on the side surface of the hollow pipe (9), one end, far away from the hollow pipe (9), of the cross rod is fixedly connected with a finger ring (15), and a connecting plate (16) is connected to the interior of the finger ring (15) in a sliding mode;

finger ring (15) inside is located top fixedly connected with regulating plate (11) of connecting plate (16), the inside of regulating plate (11) is equipped with spout (12), the inside sliding connection of spout (12) has slider (18).

2. The reagent dropper for children test according to claim 1, wherein: one end of the connecting pipe (6) close to the dropper (4) is fixedly connected with a sealing ring (5), and the diameter of the sealing ring (5) is smaller than that of the connecting pipe (6).

3. The reagent dropper for children test according to claim 1, wherein: one end fixedly connected with first threaded rod (10) that connecting pipe (6) are close to hollow tube (9), and first threaded rod (10) and hollow tube (9) threaded connection, first threaded rod (10) are hollow setting.

4. The reagent dropper for children test according to claim 1, wherein: the side surface of the plastic plate (1) is provided with a rubber pad (7), and the side surface of the sliding block (18) is provided with a threaded hole.

5. The reagent dropper for children test according to claim 1, wherein: the inner part of the sliding chute (12) is embedded and connected with a limiting rod (19), and the limiting rod (19) is attached and connected with the sliding block (18).

6. The reagent dropper for children testing according to claim 5, wherein: one end of the limiting rod (19) far away from the sliding groove (12) is fixedly connected with a baffle (14).

7. The reagent dropper for children experiments according to claim 6, wherein: the left side threaded connection that the inside of baffle (14) is located gag lever post (19) has second threaded rod (13), and second threaded rod (13) and slider (18) threaded connection.

8. The reagent dropper for children test according to claim 1, wherein: one end of the hollow pipe (9) far away from the first threaded rod (10) is provided with a drip bag (8).

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