CN213875131U

CN213875131U - Sampling device for physics experiments

Info

Publication number: CN213875131U
Application number: CN202120053831.0U
Authority: CN
Inventors: 张逸辰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-03
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a sampling device for physical experiments, which comprises an opening base, wherein the inside of the opening base is rotatably connected with a rotating shaft, and the top of the rotating shaft is fixedly connected with a stand column; the top of the upright post is sleeved with a connecting post, the side wall of the upright post is in threaded sleeve joint with a first bolt, the connecting post is in threaded sleeve joint with a sliding rod, and the side wall of the connecting post is in threaded sleeve joint with a second bolt; a sampling tube is inserted on the sliding rod, and a fastener is sleeved on the side wall of the sliding rod in a threaded manner; the inside sliding connection of sampling tube has the piston, the top fixedly connected with pull rod of piston. A sampling device for physics experiments, can prevent effectively that after the sample, have acidic liquid and drip at the experiment mesa, be favorable to people to use, bring better use prospect.

Description

Sampling device for physics experiments

Technical Field

The utility model relates to a sampling technical field for the physics experiments, in particular to sampling device for physics experiments.

Background

Physics is the subject of studying the most general law of motion and basic structure of substances, and as the leading subject of natural science, physics studies the most basic motion form and law of all substances, such as universe, basic particles and the like, and in order to enable people to better understand physical phenomena, a sampling device is needed when physical experiments are carried out.

The existing sampling device has certain defects when in use, liquid after sampling is easily caused to drip on an experiment table board, inconvenience is brought to an experiment, certain adverse effects are brought to the use process of people, and therefore the sampling device for the physical experiment is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a sampling device for physics experiments can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sampling device for physical experiments comprises an opening base, wherein a rotating shaft is rotatably connected inside the opening base, and the top of the rotating shaft is fixedly connected with an upright post;

the top of the upright post is sleeved with a connecting post, the side wall of the upright post is in threaded sleeve joint with a first bolt, the connecting post is in threaded sleeve joint with a sliding rod, and the side wall of the connecting post is in threaded sleeve joint with a second bolt;

a sampling tube is inserted on the sliding rod, and a fastener is sleeved on the side wall of the sliding rod in a threaded manner;

the inside sliding connection of sampling tube has the piston, the top fixedly connected with pull rod of piston.

Preferably, the inside of the open base forms an annular cavity, and the open base is designed as a circular disc.

Preferably, the bottom of spliced pole stretches into in the stand to with sliding connection between the stand, the one end of a bolt stretches into in the stand to compress tightly with the lateral wall of spliced pole.

Preferably, one end of the sliding rod penetrates through the connecting column and is in sliding connection with the connecting column, and one end of the second bolt extends into the connecting column and is tightly pressed with the outer wall of the sliding rod.

Preferably, the slide bar is passed to the bottom of sampling tube to with sliding connection between the slide bar, the top of slide bar seted up with sampling tube assorted trompil, the one end of fastener stretches into in the slide bar, and compresses tightly with the outer wall of sampling tube.

Compared with the prior art, the utility model discloses following beneficial effect has: the sampling device for the physical experiment can place a container filled with liquid below a sampling tube during sampling, then unscrew a bolt on the side wall of a stand column to enable a connecting column to be contracted into the stand column, then insert the sampling tube on a slide rod, fix the position of the sampling tube on the slide rod through a fastener, then stretch the bottom of the sampling tube into the container filled with the liquid, lift a pull rod to enable a piston to slide in the sampling tube to generate suction in the sampling tube, thereby sucking the liquid in the container into the sampling tube, thereby completing sampling of the liquid in the physical experiment, can ensure that the sampling is more accurate through the structure, unscrew a bolt II on the side wall of the connecting column after the sampling is finished, enable the slide rod to slide on the connecting column, enable the sampling tube to be positioned right above an opening base, and when the sampling tube moves, can prevent effectively that liquid from dripping on the experiment mesa, when the liquid in the sample tube drips in the opening base, also be convenient for clean it, make things convenient for people to use, whole sampling device for physics experiments simple structure, convenient operation, the effect of using is better for traditional mode.

Drawings

Fig. 1 is the utility model relates to a sampling device for physics experiments's overall structure schematic diagram.

Fig. 2 is a schematic diagram of a displacement structure of the sliding rod 7 in fig. 1 of the sampling device for physical experiments of the present invention.

Fig. 3 is an enlarged view of a in fig. 1 of a sampling device for physical experiments according to the present invention.

In the figure: 1. an open base; 2. a rotating shaft; 3. a column; 4. a first bolt; 5. connecting columns; 6. a second bolt; 7. a slide bar; 8. a sampling tube; 9. a fastener; 10. a pull rod; 11. a piston.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a sampling device for physical experiments comprises an opening base 1, a rotating shaft 2 is rotatably connected inside the opening base 1, a column 3 is fixedly connected to the top of the rotating shaft 2, and the rotating shaft 2 arranged in the opening base 1 is used for rotating the column 3 on the rotating shaft 2 after sampling, so that the direction of a sampling tube 8 is changed, and operation during experiments is facilitated;

the top of the upright post 3 is sleeved with a connecting post 5, the side wall of the upright post 3 is sleeved with a first bolt 4 in a threaded manner, a sliding rod 7 is connected on the connecting post 5 in a penetrating manner, and the side wall of the connecting post 5 is sleeved with a second bolt 6 in a threaded manner;

a sampling tube 8 is inserted on the slide bar 7, and a fastener 9 is sleeved on the side wall of the slide bar 7 in a threaded manner;

the sampling tube 8 is connected with a piston 11 in a sliding way, and the top of the piston 11 is fixedly connected with a pull rod 10.

Further, the inside of opening base 1 is formed with the annular chamber, and opening base 1 is the disc design to when moving sampling tube 8, what sampled in the sampling tube 8 can drip in opening base 1, prevent that liquid from dripping on the experiment mesa.

Further, the bottom of spliced pole 5 stretches into in the stand 3 to with sliding connection between the stand 3, the one end of a bolt 4 stretches into in the stand 3, and compresses tightly with the lateral wall of spliced pole 5, so that spliced pole 5 slides on stand 3, thereby can fix the position of spliced pole 5 on stand 3 through a bolt 4.

Further, spliced pole 5 is passed to the one end of slide bar 7 to with between the spliced pole 5 sliding connection, the one end of No. two bolts 6 stretches into in the spliced pole 5, and compress tightly with the outer wall of slide bar 7, so that slide bar 7 slides on spliced pole 5, thereby can make sampling tube 8 be located opening base 1 directly over, can also fix the position of slide bar 7 on spliced pole 5 through No. two bolts 6.

Further, slide bar 7 is passed to the bottom of sampling tube 8 to with sliding connection between the slide bar 7, the top of slide bar 7 seted up with sampling tube 8 assorted trompil, the one end of fastener 9 stretches into in the slide bar 7, and compresses tightly with the outer wall of sampling tube 8, so that sampling tube 8 pegs graft on slide bar 7, then fixes the position of sampling tube 8 on slide bar 7 through fastener 9.

The utility model discloses theory of operation and use flow: when the sampling device is used, a container filled with liquid can be placed below the sampling tube 8 during sampling, then the first bolt 4 on the side wall of the upright post 3 is unscrewed, the connecting post 5 is contracted into the upright post 3, then the sampling tube 8 is inserted on the sliding rod 7, the position of the sampling tube 8 on the sliding rod 7 is fixed through the fastener 9, then the bottom of the sampling tube 8 is stretched into the container filled with the liquid, the pulling rod 10 is pulled to enable the piston 11 to slide in the sampling tube 8, so that suction is generated in the sampling tube 8, the liquid in the container is sucked into the sampling tube 8, so that the liquid is sampled in a physical experiment, the sampling can be more accurate through the structure, after the sampling is finished, the second bolt 6 on the side wall of the connecting post 5 can be unscrewed, the sliding rod 7 can slide on the connecting post 5, so that the sampling tube 8 is positioned right above the opening base 1, as shown in figure 2, when removing sampling tube 8, can prevent effectively that liquid from dripping on the experiment mesa, when the liquid in sampling tube 8 drips in opening base 1, also be convenient for clean it, after the sample, can stir slide bar 7 for stand 3 rotates in pivot 2, thereby changes the direction of sampling tube 8, conveniently operates in the experiment, makes things convenient for people to use.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a sampling device for physics experiments, includes opening base (1), its characterized in that: a rotating shaft (2) is rotatably connected inside the opening base (1), and the top of the rotating shaft (2) is fixedly connected with an upright post (3);

a connecting column (5) is sleeved at the top of the upright column (3), a first bolt (4) is sleeved on the side wall thread of the upright column (3), a sliding rod (7) is connected on the connecting column (5) in a penetrating manner, and a second bolt (6) is sleeved on the side wall thread of the connecting column (5);

a sampling tube (8) is inserted on the sliding rod (7), and a fastener (9) is sleeved on the side wall of the sliding rod (7) in a threaded manner;

the inside sliding connection of sampling tube (8) has piston (11), the top fixedly connected with pull rod (10) of piston (11).

2. A sampling device for physical experiments, according to claim 1, wherein: an annular cavity is formed inside the opening base (1), and the opening base (1) is designed to be a circular disc.

3. A sampling device for physical experiments, according to claim 1, wherein: the bottom of spliced pole (5) stretches into in stand (3) to with sliding connection between stand (3), the one end of a bolt (4) stretches into in stand (3) to compress tightly with the lateral wall of spliced pole (5).

4. A sampling device for physical experiments, according to claim 1, wherein: one end of the sliding rod (7) penetrates through the connecting column (5) and is in sliding connection with the connecting column (5), and one end of the second bolt (6) extends into the connecting column (5) and is tightly pressed with the outer wall of the sliding rod (7).

5. A sampling device for physical experiments, according to claim 1, wherein: slide bar (7) are passed to the bottom of sampling tube (8) to with sliding connection between slide bar (7), the top of slide bar (7) seted up with sampling tube (8) assorted trompil, the one end of fastener (9) stretches into in slide bar (7) to compress tightly with the outer wall of sampling tube (8).