CN211216732U

CN211216732U - High-precision dropping tube

Info

Publication number: CN211216732U
Application number: CN201921830042.2U
Authority: CN
Inventors: 李九荣; 王敏; 马骏
Original assignee: Taizhou Runli Engineering Technology Co ltd
Current assignee: Taizhou Runli Engineering Technology Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-08-11
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a high accuracy dropping liquid pipe, including reagent pipe, reagent pipe top position is provided with screw sleeve, be provided with accuse liquid device in reagent pipe and the screw sleeve, accuse liquid device includes first push rod, first push rod bottom is rotated and is connected with the connecting rod, first push rod one end fixedly connected with fourth fixed block is kept away from to the connecting rod, the fourth fixed block is kept away from first push rod one side and is provided with the third fixed block, through bolt fixed connection between fourth fixed block and the third fixed block, fourth fixed block one side fixedly connected with second piston is kept away from to the third fixed block, the first fixed block of third fixed block one side fixedly connected with second fixed block is kept away from to the second piston, second piston one end fixedly connected with second fixed block is kept away from to first fixed block. The utility model discloses can change rubber piston, avoid extravagant, it is high to utilize high-precision lead screw to make equipment dripping precision simultaneously, improves experiment success rate and experimental data accuracy.

Description

High-precision dropping tube

Technical Field

The utility model relates to a chemistry experiment equipment technical field especially relates to a high accuracy dropping liquid pipe.

Background

The development of various industries is not chemical, chemical research is a science for pursuing precision, and for the purpose that a chemical experiment cannot have a deviation at all, common chemical experiment instruments comprise a rubber dropper, an iron stand, an asbestos gauge, an alcohol lamp and the like.

In the prior art, a fat belly dropper and a common dropper are mostly used. Consists of a rubber nipple and a sharp-mouth glass tube. But the burette often absorbs some acid-base material, and to rubber nipple how much have a little corrosive action, the burette rubber nipple among the prior art of having a long time will pulverize, can't use, can only abandon comparatively extravagantly, and the burette dropping liquid precision is not high among the traditional art simultaneously, causes the experiment inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-precision dropping liquid tube.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-precision liquid dropping pipe comprises a reagent pipe, a screw sleeve is arranged above the reagent pipe, a liquid control device is arranged in the reagent pipe and the screw sleeve and comprises a first push rod, the bottom of the first push rod is rotatably connected with a connecting rod, one end, far away from the first push rod, of the connecting rod is fixedly connected with a fourth fixed block, one side, far away from the first push rod, of the fourth fixed block is provided with a third fixed block, the fourth fixed block is fixedly connected with the third fixed block through a bolt, one side, far away from the fourth fixed block, of the third fixed block is fixedly connected with a second piston, one side, far away from the third fixed block, of the second piston is fixedly connected with a first fixed block, one end, far away from the second piston, of the first fixed block is fixedly connected with a second fixed block, the second fixed block is fixedly connected with the first fixed block through a bolt, one side, far away, the bottom of the second push rod is fixedly connected with a first piston.

As a further description of the above technical solution:

the first piston is made of glass materials, and the second piston is made of rubber materials.

As a further description of the above technical solution:

the high-precision lead screw is fixedly connected to the top of the first push rod, the rotating head is fixedly connected to the top of the high-precision lead screw, and the high-precision lead screw is sleeved with the lead screw sleeve.

As a further description of the above technical solution:

the reagent tube is characterized in that a threaded pipe is fixedly connected to the bottom of the screw rod sleeve, the top of the reagent tube is provided with an opening, a threaded hole is formed in the top of the inner wall of the reagent tube, the threaded pipe is in threaded connection with the threaded hole, and the bottom of the screw rod sleeve and the top of the reagent tube are in a penetrating arrangement.

As a further description of the above technical solution:

the reagent pipe is made of transparent glass materials, a dial is arranged on the side wall of the reagent pipe, and a liquid dropping port is fixedly connected to the bottom of the reagent pipe in a penetrating mode.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up second piston, screw sleeve and reagent pipe, through screw sleeve and reagent pipe separation, through third fixed block and fourth fixed block separation, first fixed block and second fixed block separation, can take off the second piston, can change the piston when the second piston pulverizes, make the remaining part continue to use and avoid extravagant.

2. The utility model discloses a set up high-precision lead screw, drive the lead screw through rotatory rotating head and descend, the intraductal reagent of the high messenger of lead screw precision can drip under comparatively accurate control, and the volume error of avoiding dripping reagent down causes the experiment failure, or experimental data is inaccurate.

The utility model discloses can change rubber piston, avoid extravagant, it is high to utilize high-precision lead screw to make equipment dripping precision simultaneously, improves experiment success rate and experimental data accuracy.

Drawings

Fig. 1 is a front view of a high-precision dropping tube according to the present invention;

fig. 2 is an exploded view of a high-precision dropping tube according to the present invention;

fig. 3 is an enlarged view a of fig. 2.

Illustration of the drawings:

1. rotating the head; 2. a lead screw sleeve; 3. a reagent tube; 4. a drip port; 5. a threaded pipe; 6. a threaded hole; 7. a dial scale; 8. a high-precision lead screw; 9. a first push rod; 10. a second push rod; 11. a first piston; 12. a first fixed block; 13. a second fixed block; 14. a second piston; 15. a third fixed block; 16. a fourth fixed block; 17. a connecting rod.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only 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; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a high-precision liquid dropping pipe comprises a reagent pipe 3, a screw sleeve 2 is arranged above the reagent pipe 3, a liquid control device is arranged in the reagent pipe 3 and the screw sleeve 2 and comprises a first push rod 9, the bottom of the first push rod 9 is rotatably connected with a connecting rod 17, one end of the connecting rod 17, far away from the first push rod 9, is fixedly connected with a fourth fixed block 16, one side of the fourth fixed block 16, far away from the first push rod 9, is provided with a third fixed block 15, the fourth fixed block 16 is fixedly connected with the third fixed block 15 through a bolt, one side of the third fixed block 15, far away from the fourth fixed block 16, is fixedly connected with a second piston 14, one side of the second piston 14, far away from the third fixed block 15, is fixedly connected with a first fixed block 12, one end of the first fixed block 12, far away from the second piston 14, is fixedly connected with a second fixed, one side of the second fixing block 13, which is far away from the first fixing block 12, is fixedly connected with a second push rod 10, and the bottom of the second push rod 10 is fixedly connected with a first piston 11.

The first piston 11 is made of glass material and the second piston 14 is made of rubber material. 9 top fixedly connected with high-precision lead screw 8 of first push rod, 8 top fixedly connected with rotating heads 1 of high-precision lead screw, high-precision lead screw 8 cup joints with lead screw sleeve 2. 2 bottom fixedly connected with screwed pipes 5 of lead screw sleeve, 3 top positions of reagent pipe are the opening setting, and 3 inner wall top positions of reagent pipe have seted up threaded hole 6, and screwed

pipe

5 and 6 threaded connection of screw hole are run through the setting with 3 tops of reagent pipe in 2 bottoms of lead screw sleeve. The reagent tube 3 is made of transparent glass material, the side wall of the reagent tube 3 is provided with a dial 7, and the bottom of the reagent tube 3 is fixedly connected with a dropping port 4 in a penetrating way.

The working principle is as follows: the experimenter inserts drip mouth 4 into the reagent bottle, rotatory rotating head 1 drives first piston 11 and second piston 14 and up moves and draws chemical reagent, then take the device up, aim at reaction vessel with drip mouth 4, rotatory rotating head 1 makes first piston 11 and second piston 14 move down and add reagent toward reaction vessel in, pulverize back screw sleeve 2 and reagent pipe 3 counter rotation when second piston 14, make its separation, again separate third fixed block 15 and fourth fixed block 16, separate first fixed block 12 and second fixed block 13, take off second piston 14 and more renew.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A high accuracy dropping liquid pipe, includes reagent pipe (3), its characterized in that: a screw rod sleeve (2) is arranged above the reagent tube (3), liquid control devices are arranged in the reagent tube (3) and the screw rod sleeve (2), each liquid control device comprises a first push rod (9), a connecting rod (17) is rotatably connected to the bottom of the first push rod (9), one end, far away from the first push rod (9), of the connecting rod (17) is fixedly connected with a fourth fixed block (16), one side, far away from the first push rod (9), of the fourth fixed block (16) is provided with a third fixed block (15), the fourth fixed block (16) is fixedly connected with the third fixed block (15) through bolts, one side, far away from the fourth fixed block (16), of the third fixed block (15) is fixedly connected with a second piston (14), one side, far away from the third fixed block (15), of the second piston (14) is fixedly connected with a first fixed block (12), one end, far away from the second piston (14), of the first fixed block (12) is fixedly connected with a second, the second fixing block (13) is fixedly connected with the first fixing block (12) through a bolt, a second push rod (10) is fixedly connected to one side, away from the first fixing block (12), of the second fixing block (13), and a first piston (11) is fixedly connected to the bottom of the second push rod (10).

2. A high precision liquid dropping tube according to claim 1, wherein: the first piston (11) is made of glass materials, and the second piston (14) is made of rubber materials.

3. A high precision liquid dropping tube according to claim 1, wherein: first push rod (9) top fixedly connected with high-precision lead screw (8), high-precision lead screw (8) top fixedly connected with rotating head (1), high-precision lead screw (8) cup joint with lead screw sleeve (2).

4. A high precision liquid dropping tube according to claim 1, wherein: lead screw sleeve (2) bottom fixedly connected with screwed pipe (5), reagent pipe (3) top position is the opening setting, reagent pipe (3) inner wall top position set up threaded hole (6), screwed pipe (5) and threaded hole (6) threaded connection, lead screw sleeve (2) bottom and reagent pipe (3) top are and run through the setting.

5. A high precision liquid dropping tube according to claim 1, wherein: reagent pipe (3) are transparent glass material, reagent pipe (3) lateral wall is provided with calibrated scale (7), fixedly connected with drip mouth (4) runs through reagent pipe (3) bottom.