CN219590992U - Capillary phenomenon demonstrator - Google Patents

Abstract

The utility model relates to a capillary phenomenon demonstrator, which comprises a solution tank, a capillary rack, a probe rack plate and a direct current power supply, wherein a plurality of separation plates for separating test solution are arranged in the solution tank, and a conductive block is arranged at the bottom of the solution tank; the capillary rack is provided with through holes, and capillaries with different specifications are fixed in part of the through holes; a plurality of probes are arranged below the probe frame plate, and LED indicator lamps which are in one-to-one correspondence with the probe arrangement positions are arranged on the front edge of the probe frame plate; one electrode of the direct current power supply is connected with the conductive block, the other electrode of the direct current power supply is connected with the probe through the LED indicator lamp, and the conductive block, the direct current power supply, the LED indicator lamp and the probe can pass through a test solution to form a passage. The capillary phenomenon demonstrator indirectly demonstrates the rise and fall change of the liquid level in each capillary tube with capillary phenomenon through the comparison of the lighting conditions of the corresponding indicator lamps of each probe, and further explains and explains the physical phenomenon.

Description

Capillary phenomenon demonstrator

Technical Field

The utility model relates to the field of physical teaching equipment for high-school students, in particular to a capillary phenomenon demonstrator.

Background

Capillary phenomenon is a physical phenomenon, and is mainly represented by a phenomenon that an infiltration liquid rises in a capillary and a non-infiltration liquid descends in the capillary. In the existing physical teaching test of high school, a J2267 type capillary phenomenon demonstrator is widely adopted for demonstration, the demonstrator can observe the phenomenon that the liquid level of water in the capillary phenomenon is obviously increased, but because mercury is opaque and the liquid level is reduced in the capillary phenomenon, the demonstrator is difficult to provide a display effect which can be obviously observed for the phenomenon in the classroom teaching test.

Disclosure of Invention

The utility model aims to solve the technical problems that: the defect that the capillary phenomenon demonstrator is difficult to demonstrate due to the fact that the J2267 type capillary phenomenon demonstrator is insufficient in part of liquid level change and significant in observation is overcome, and the capillary phenomenon demonstrator is provided, wherein the capillary phenomenon demonstrator indirectly demonstrates the liquid level lifting change in each capillary tube with the capillary phenomenon through the comparison of the lighting conditions of the corresponding indicator lamps of each probe, so that the physical phenomenon is explained and demonstrated.

The capillary phenomenon demonstrator comprises a solution tank for containing test solution, a capillary rack, a probe rack plate and a direct current power supply, wherein the capillary rack and the probe rack plate are arranged above the solution tank, the capillary rack and the probe rack plate can move up and down relative to the solution tank in the vertical direction, the two stages of the direct current power supply are respectively connected with the solution tank and the probe rack plate, a plurality of separation plates for separating the test solution are arranged in the solution tank, and a conductive block is arranged at the bottom of the solution tank; the capillary rack is provided with through holes, and capillaries with different specifications are fixed in part of the through holes; a plurality of probes are arranged below the probe frame plate, and LED indicator lamps which are in one-to-one correspondence with the probe arrangement positions are arranged on the front edge of the probe frame plate; one electrode of the direct current power supply is connected with the conductive block, the other electrode of the direct current power supply is connected with the probe through the LED indicator lamp, and the conductive block, the direct current power supply, the LED indicator lamp and the probe can pass through a test solution to form a passage.

In order to align and fix the solution tank, the capillary rack and the probe rack plate, the capillary phenomenon demonstrator also comprises a rack, wherein the rack comprises a pedestal for placing the solution tank, a pair of upright posts arranged at two sides behind the pedestal, and the capillary rack and the probe rack plate are glidingly matched on the upright posts; the driving table is detachably and movably arranged above the upright post.

For carrying out ascending and descending drive to the probe frame plate, the drive platform wears to install on the stand, and the drive platform wears to install the department in two and is equipped with a pair of jack bolts, and drive platform central authorities are fixed with the wire hole nut to be equipped with the drive lead screw in the wire hole nut, be equipped with connecting bearing on the probe frame plate, connecting bearing's outer lane is fixed at probe frame plate central authorities, connecting bearing's inner circle fixed connection drive lead screw lower extreme.

In order to facilitate the driving of the screw rod to move downwards, the upper end of the driving screw rod is transversely provided with a hole, and a rotation-assisting rod is arranged in the hole in a penetrating manner.

For realizing pedestal levelness adjustment, four screw thread supporting legs are screwed in four corners below the pedestal, the screw thread supporting legs comprise a short screw rod for screwed with a screw hole on the lower surface of the pedestal, and a spherical rubber head is arranged below the short screw rod.

Further, the front side of the pedestal is provided with a level gauge.

The LED display lamp circuit structure is characterized in that the direct current power supply is fixed on the pedestal, one electrode of the direct current power supply is connected with the conductive block through a wire, and the other electrode is connected with the upper end of the connecting probe through the wire and the LED display lamp.

The capillary phenomenon demonstrator overcomes the defect that the J2267 capillary phenomenon demonstrator is difficult to demonstrate the capillary phenomenon that part of liquid level changes are insufficient for remarkable observation, indirectly demonstrates the liquid level lifting change in each capillary tube with the capillary phenomenon through the comparison of the lighting conditions of the corresponding indicator lamps of each probe, and further explains and explains the physical phenomenon.

Drawings

The capillary phenomenon demonstrator of the utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of the front plan view structure of the present capillary phenomenon demonstrator;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the solution tank of the present capillary phenomenon demonstrator in a longitudinal half-section;

fig. 4 is a block diagram of the circuit configuration of the LED indicator of the present capillary phenomenon demonstrator.

In the figure:

1-a solution tank; 11-a separator, 12-a conductive block;

2-capillary rack; 21-a through hole direct current power supply and 22-a capillary tube;

3-a probe frame plate; 31-probes, 32-LED indicator lights and 33-connecting bearings;

4-direct current power supply;

5-stand; 51-pedestal, 52-pair of upright posts, 53-screw thread supporting feet and 54-level gauge; 531-short screw rod, 532-spherical rubber head;

6-a drive table; 61-a jack bolt, 62-a threaded nut, 63-a driving screw rod and 64-a rotation-assisting rod.

Detailed Description

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The technical scheme of the present utility model will be further described by the following specific examples, but the scope of the present utility model is not limited to the following examples.

Embodiment 1: as shown in fig. 1 to 3, the capillary phenomenon demonstrator comprises a solution tank 1 for holding a test solution, a capillary rack 2, a probe rack plate 3 and a direct current power supply 4, wherein the capillary rack 2 and the probe rack plate 3 are arranged above the solution tank 1, the capillary rack 2 and the probe rack plate 3 can move up and down relative to the solution tank 1 in the vertical direction, the two stages of the direct current power supply 4 are respectively connected with the solution tank 1 and the probe rack plate 3, a plurality of partition plates 11 for isolating the test solution are arranged in the solution tank 1, and a conductive block 12 is arranged at the bottom of the solution tank 1; the capillary rack 2 is provided with a through hole 21, and capillaries 22 with different specifications are fixed in part of the through holes; a plurality of probes 31 are arranged below the probe frame plate 3, and LED indicator lamps 32 which are in one-to-one correspondence with the arrangement positions of the probes 31 are arranged on the front edge of the probe frame plate 3; one electrode of the direct current power supply 4 is connected with the conductive block 12, the other electrode is connected with the probe 31 through the LED indicator lamp 32, and the conductive block 12, the direct current power supply 4, the LED indicator lamp 32 and the probe 31 can form a passage through a test solution.

Embodiment 2: the capillary phenomenon demonstrator further comprises a stand 5, wherein the stand 5 comprises a pedestal 51 for placing the solution tank 1, a pair of stand columns 52 arranged at two rear sides of the pedestal 51, and the capillary frame 2 and the probe frame plate 3 are in sliding fit on the stand columns 52; a driving table 6 is detachably and movably arranged above the upright post 52. Is used for aligning and fixing the solution tank, the capillary rack and the probe rack plate. The driving table 6 is arranged on the upright column 52 in a penetrating manner, a pair of tightening bolts 61 are arranged at two penetrating positions of the driving table 6, a threaded hole nut 62 is fixed at the center of the driving table 6, a driving screw 63 is arranged in the threaded hole nut 62, a connecting bearing 33 is arranged on the probe frame plate 3, an outer ring of the connecting bearing 33 is fixed at the center of the probe frame plate 3, and an inner ring of the connecting bearing 33 is fixedly connected with the lower end of the driving screw 63. And driving the probe frame plate up and down. The upper end of the driving screw 63 is transversely provided with a hole, and a rotation-assisting rod 64 is arranged in the hole in a penetrating way. The screw rod is convenient to drive to move up and down. The remaining structures and components are as described in embodiment 1, and a description thereof will not be repeated.

Embodiment 3: four threaded supporting feet 53 are screwed at four corners below the pedestal 51, the threaded supporting feet 53 comprise a short screw rod 531 for screwed with a screw hole on the lower surface of the pedestal 51, and a spherical rubber head 532 is arranged below the short screw rod 531. And the device is used for realizing the adjustment of the levelness of the pedestal. The front side of the pedestal 51 is provided with a level gauge 54. The remaining structures and components are as described in embodiment 1, and a description thereof will not be repeated.

Embodiment 4: as shown in fig. 4, the dc power supply 4 of the capillary phenomenon demonstrator is fixed on the stand 51, one electrode of the dc power supply 4 is connected with the conductive block 12 through a wire, and the other electrode is connected with the upper end of the connection probe 31 through a wire and the LED indicator lamp 32. The LED indication lamp body loop structure is formed. The remaining structures and components are as described in embodiment 1, and a description thereof will not be repeated.

When in use, the utility model is characterized in that: after the levelness of the stand is adjusted, one side of the solution tank partition board is filled with salt solution, the other side is filled with mercury, the liquid level is equal, and the salt solution is placed on a pedestal of the stand; the six through holes of the capillary rack are respectively fixed with 0.3mm capillary, 1mm capillary, no tube, 1mm capillary and 0.3mm capillary, and then fixed at a certain height (the height is selected: the lower end of the capillary is inserted into the liquid level in the solution tank); the screw rod is driven by the rotation of the rotation-assisting rod, the probe frame plate is driven to move downwards, and six probes on the plate are respectively inserted into the capillary or contacted with the liquid level in the solution tank through the through holes. When the probe contacts the liquid level, the corresponding LED indicator lamp loop is communicated, and the lamp body is lightened; the probe with the rising liquid level in the capillary tube is corresponding to the LED to be lighted firstly, no capillary tube is secondary, the probe with the falling liquid level in the capillary tube is corresponding to the LED to be lighted last, and then the capillary phenomenon is indirectly displayed.

The capillary phenomenon demonstrator overcomes the defect that the J2267 capillary phenomenon demonstrator is difficult to demonstrate the capillary phenomenon that part of liquid level changes are insufficient for remarkable observation, indirectly demonstrates the liquid level lifting change in each capillary tube in which the capillary phenomenon occurs through the comparison of the lighting conditions of the corresponding indicator lamps of each probe, and further explains and illustrates the physical phenomenon.

The foregoing description illustrates the major features, principles, and advantages of the utility model. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments or examples, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The foregoing implementations or examples should be regarded as illustrative rather than limiting. The scope of the utility model is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. A capillary phenomenon demonstrator, characterized by: comprises a solution tank (1) for containing test solution, a capillary rack (2), a probe rack plate (3) and a direct current power supply (4) which are arranged above the solution tank (1), wherein the capillary rack (2) and the probe rack plate (3) can move up and down relative to the solution tank (1) in the vertical direction, the two stages of the direct current power supply (4) are respectively connected with the solution tank (1) and the probe rack plate (3),

a plurality of clapboards (11) for isolating test solution are arranged in the solution tank (1), and a conductive block (12) is arranged at the bottom of the solution tank (1); the capillary rack (2) is provided with through holes (21), and capillaries (22) with different specifications are fixed in part of the through holes; a plurality of probes (31) are arranged below the probe frame plate (3), and LED indicator lamps (32) which are in one-to-one correspondence with the arrangement positions of the probes (31) are arranged at the front edge of the probe frame plate (3);

one electrode of the direct current power supply (4) is connected with the conductive block (12), the other electrode is connected with the probe (31) through the LED indicator lamp (32), and the conductive block (12), the direct current power supply (4), the LED indicator lamp (32) and the probe (31) can form a passage through the test solution.

2. The capillary phenomenon demonstrator of claim 1, wherein: the device further comprises a stand (5), wherein the stand (5) comprises a pedestal (51) for placing the solution tank (1), a pair of stand columns (52) arranged at two sides behind the pedestal (51), and the capillary frame (2) and the probe frame plate (3) are in sliding fit on the stand columns (52); a driving table (6) is detachably and movably arranged above the upright post (52).

3. The capillary phenomenon demonstrator of claim 2, characterized in that: the driving table (6) is arranged on the upright post (52) in a penetrating mode, a pair of jacking bolts (61) are arranged at two penetrating positions of the driving table (6), a threaded hole nut (62) is fixed at the center of the driving table (6), a driving screw rod (63) is arranged in the threaded hole nut (62), a connecting bearing (33) is arranged on the probe frame plate (3), the outer ring of the connecting bearing (33) is fixed at the center of the probe frame plate (3), and the inner ring of the connecting bearing (33) is fixedly connected with the lower end of the driving screw rod (63).

4. A capillary phenomenon demonstrator according to claim 3, wherein: the upper end of the driving screw rod (63) is transversely provided with a hole, and a rotation-assisting rod (64) is arranged in the hole in a penetrating way.

5. The capillary phenomenon demonstrator according to claim 4, wherein: four threaded supporting feet (53) are screwed at four corners below the pedestal (51), the threaded supporting feet (53) comprise short screw rods (531) for screwed holes on the lower surface of the pedestal (51), and spherical rubber heads (532) are arranged below the short screw rods (531).

6. The capillary phenomenon demonstrator of claim 5, wherein: a level meter (54) is arranged on the front side of the pedestal (51).

7. A capillary phenomenon demonstrator according to any one of claims 1 to 6, characterized in that: the direct current power supply (4) is fixed on the pedestal (51), one electrode of the direct current power supply (4) is connected with the conductive block (12) through a wire, and the other electrode is connected with the upper end of the connecting probe (31) through an LED indicator lamp (32) through a wire.