CN212061591U - Explanation device with reduce and measure error function - Google Patents

Abstract

The utility model discloses an explanation device with the function of reducing the measurement error, which aims to improve the measurement reliability; the weighing device comprises a base, a back plate and a weighing mechanism, wherein the outer wall of the bottom of the back plate is integrally arranged on the outer wall of the top of the base, and two side plates and a top plate are respectively arranged on the outer walls of two sides and the outer wall of the top of the back plate through three groups of hinges; a door plate is arranged on the outer wall of one side plate through a hinge, and the door plate, the top plate, the back plate and the two side plates are all made of transparent acrylic materials; and the top plate is also provided with a fixing mechanism for fixing the top plate and the side plate. The utility model can conveniently weigh objects by arranging the weighing platform, the first level bubble and the pressure sensor, and can adjust the weighing platform to a horizontal state by observing the first level bubble and utilizing the adjusting screw assembly, thereby ensuring the weighing precision and reducing errors; through setting up the balancing weight, can be convenient for stabilize the platform focus of weighing to hoisting device's stability.

Description

Explanation device with reduce and measure error function

Technical Field

The utility model relates to a measure, explain technical field, especially relate to an explain device with reduce measurement error function.

Background

In the physical teaching process, various explanation devices are often used for assisting teaching, the measurement cannot be infinitely accurate due to the limitation of factors such as instruments, experimental conditions, environments and the like, a certain difference always exists between the measured value of the physical quantity and the actual value of the physical quantity, and the development of teaching is not facilitated if the measurement error is too large.

Through retrieval, the patent with the Chinese patent application number of CN201710596970.6 discloses a multifunctional physical teaching aid, which comprises a test bed, wherein the test bed comprises a base plate and an upright post, one end of the upright post is connected to the base plate, and the other end of the upright post is connected with a rod ruler; the demonstration device comprises a lifting platform arranged on the base plate in parallel to the stand column, a water cup fixed on a table top plate of the lifting platform and filled with water, a container electronic scale arranged on the table top plate, and a sliding electronic scale sleeved on the rod ruler and provided with a display screen, wherein weights are hooked at the bottom of the sliding electronic scale, the lifting platform rises, the weights are immersed in the water of the water cup, the water in the water cup flows into the container electronic scale through a water flowing pipe arranged on the water cup to be weighed, and the value on the container electronic scale is equivalent to the value reduced on the display screen of the sliding electronic scale. The container electronic scale in the above patent has the following disadvantages: during measurement, the measurement error is too large due to the inclination of the measurement plane, and the measurement reliability is affected.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing an explanation device with the function of reducing the measurement error.

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

an explanation device with a function of reducing measurement errors comprises a base, a back plate and a weighing mechanism, wherein the outer wall of the bottom of the back plate is integrally arranged on the outer wall of the top of the base, and two side plates and a top plate are respectively arranged on the outer walls of two sides and the outer wall of the top of the back plate through three groups of hinges; a door plate is arranged on the outer wall of one side plate through a hinge, and the door plate, the top plate, the back plate and the two side plates are all made of transparent acrylic materials; the top plate is also provided with a fixing mechanism for fixing the top plate and the side plate; the weighing mechanism is arranged on the outer wall of the bottom of the top plate and comprises a pressure sensor and a weighing table, the pressure sensor is fixed on the outer wall of the bottom of the top plate through screws, the outer wall of the bottom of the pressure sensor is connected with four adjusting screw assemblies through lifting ropes, and the adjusting screw assemblies are connected to the inner wall of the bottom of the weighing table through threads; the outer wall of the top of the weighing platform is embedded with a first level bubble, the outer wall of the bottom of the weighing platform is fixed with a balancing weight through a screw, and the balancing weight is of an annular structure; the outer wall of the top plate is fixed with a display and a control unit through screws, and the control unit is electrically connected with the display and the pressure sensor respectively.

Preferably: the base bottom four corners position all has the regulation post through threaded connection, adjusts the post bottom sliding connection and has the footing, and the circumference outer wall processing of adjusting the post has first gear, and the base top inner wall has the second air level of pegging graft.

Further: the inner wall of one side of the bottom foot is rotatably connected with an adjusting rod, the adjusting rod is slidably connected with the inner wall of the bottom of the base, a second gear is machined on the outer wall of the circumference of the adjusting rod and is meshed with the first gear, an adjusting wheel is fixed at the bottom end of the adjusting rod through a screw, and the adjusting wheel rotates on the inner wall of the bottom foot; the radius of the second gear is smaller than the radius of the first gear.

Further preferred is: the pressure sensor bottom central point puts and is connected with the reference rope through the lifting rope, and one side outer wall of curb plate and backplate all is provided with the angle line.

As an optimization of the utility model: the outer wall of one side of the side plate and the outer wall of one side of the back plate are both rotatably connected with a rotating frame with self-locking function, the outer wall of one side of the rotating frame is fixed with a bar-shaped spot lamp through screws, the rotating frame is matched with the angle line and the position of the reference rope, and the length of the bar-shaped spot lamp is greater than that of the reference rope; the angle line is of a groove structure.

As the utility model discloses further preferred: and angle sensors are arranged on the shafts of the rotating frames and are electrically connected with the control unit.

As a further aspect of the present invention: the spout has all been seted up to one side inner wall of curb plate and backplate, and the equal sliding connection of spout inner wall has the slider, and slider one end outer wall rotates and is connected with the roating seat of taking the auto-lock, and the roating seat inner wall has the slide through the screw fixation, and slide inner wall sliding connection has the slide bar.

On the basis of the scheme: magnets are fixed among the back plate, the top plate and the side plates through buckles; the hinge is of an embedded structure, the fixing mechanism comprises a top plate and a fixing pin, the fixing pin is respectively inserted into the inner walls of the two sides of the top plate and one side of the outer walls of the tops of the two side plates, and the spring is welded between one outer wall of the fixing pin and the outer wall of the top plate; the sliding grooves are all located on the same horizontal line.

On the basis of the foregoing scheme, it is preferable that: the outer wall of the circumference of the sliding rod is provided with scale marks.

It is further preferable on the basis of the foregoing scheme that: the outer wall of one side of the door plate is fixedly provided with a buckle through a screw, the outer wall of one side plate is fixedly provided with a buckle seat matched with the buckle through a screw, and the outer wall around the door plate is bonded with a sealing ring.

The utility model has the advantages that:

1. the utility model can conveniently weigh objects by arranging the weighing platform, the first level bubble and the pressure sensor, and can adjust the weighing platform to a horizontal state by observing the first level bubble and utilizing the adjusting screw assembly, thereby ensuring the weighing precision and reducing errors; through setting up the balancing weight, can be convenient for stabilize the platform focus of weighing to hoisting device's stability.

2. The utility model can be adjusted with the Weifang by arranging the adjusting column and the second level bubble, and can be convenient for detecting the reliability of the device according to the first level bubble and the second level bubble; through setting up regulating wheel, second gear isotructure, the effect of speed reduction when having played the regulation to the regulation precision has been ensured.

3. The utility model can arrange the base on the detection surface by setting the angle line and the reference rope, and judge the levelness of the detection surface according to the angle line by utilizing the natural sagging of the gravity of the reference rope; through setting up rotating turret and bar shot-light, can rotate the rotating turret and make the light that the bar shot-light jetted out aim at the reference rope to judge the plane gradient according to the light that maps in angle line department, promoted detection effect, because the angle line is recess formula structure, judgement accuracy when can promote light and map does benefit to the intuitional experience of teaching process simultaneously, the understanding of being convenient for.

4. The inclination angle can be calculated only by at least two light rays mapped at the angle line; the utility model discloses a set up angle sensor, can directly calculate and feed back to the display through the signal of the control unit to angle sensor transmission, promoted practicality and convenience.

5. The utility model discloses a set up slide bar and slider isotructure, can be convenient for teach to the visual illusion, be convenient for compare the isometric or not isometric object of different angles on being located different planes to promote the teaching quality, promoted the functionality of device.

6. The utility model has the advantages that the fixed pin can be conveniently lifted to unlock the side plate by arranging the magnet, the fixed pin and the like, so that the top plate and the side plate are overturned to be on the same plane with the back plate and are fixed by the magnet; thereby make three spout meet, the sliding that the roating seat can be convenient in each spout in addition is convenient for compare each slide bar, promotes the teaching effect.

7. By arranging the scale marks, observation and comparison can be performed more intuitively, and the teaching effect is further improved; through setting up buckle and sealing washer, can be convenient fix door plant and curb plate to provide a relatively sealed environment, avoid receiving factor influences such as wind-force when weighing, reduced the error, promoted the precision of weighing, be convenient for accomodate simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of an entire explanation device with a function of reducing measurement errors according to the present invention;

fig. 2 is a schematic structural view of the back of an explanation device with a function of reducing measurement errors according to the present invention;

fig. 3 is a schematic structural view of a side plate of an explanation device with a function of reducing measurement errors according to the present invention;

fig. 4 is a schematic structural diagram of an explanation device rotating base with a function of reducing measurement errors according to the present invention;

fig. 5 is a schematic structural diagram of a footing of an explanation device with a function of reducing measurement errors according to the present invention;

fig. 6 is a schematic structural view of a weighing mechanism of an explanation device with a function of reducing measurement errors according to the present invention;

fig. 7 is a schematic structural diagram of an explanation device bar-shaped spot light with a function of reducing measurement errors according to the present invention;

fig. 8 is a circuit flow chart of an explanation device with a function of reducing measurement errors according to the present invention.

In the figure: the device comprises a base 1, a buckle 2, a door plate 3, a sealing ring 4, a spring 5, a top plate 6, a display 7, a control unit 8, a fixing pin 9, an angle sensor 10, a rotating frame 11, a side plate 12, an adjusting column 13, a first gear 14, a second level bubble 15, a magnet 16, a hinge 17, an angle line 18, a sliding chute 19, a rotating seat 20, a bottom foot 21, a sliding seat 22, a scale line 23, a sliding rod 24, an adjusting wheel 25, a second gear 26, an adjusting rod 27, a lifting rope 28, a pressure sensor 29, a reference rope 30, a first level bubble 31, an adjusting screw rod assembly 32, a balancing weight 33, a weighing platform 34, a bar-shaped spotlight 35, a sliding block 36 and a back plate 37.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

An explanation device with a function of reducing measurement errors comprises a base 1, a back plate 37 and a weighing mechanism, wherein the outer wall of the bottom of the back plate 37 is integrally arranged on the outer wall of the top of the base 1, and the outer walls of two sides and the outer wall of the top of the back plate 37 are respectively provided with two side plates 12 and a top plate 6 through three groups of hinges 17; the outer wall of one side plate 12 is provided with a door plate 3 through a hinge 17, and the base 1, the door plate 3, the top plate 6, the back plate 37 and the two side plates 12 form a relatively closed space; the door plate 3, the top plate 6, the back plate 37 and the two side plates 12 are all made of transparent acrylic materials; the top plate 6 is also provided with a fixing mechanism for fixing the top plate 6 and the side plate 12; the weighing mechanism is arranged on the outer wall of the bottom of the top plate 6 and comprises a pressure sensor 29 and a weighing platform 34, the pressure sensor 29 is fixed on the outer wall of the bottom of the top plate 6 through screws, the outer wall of the bottom of the pressure sensor 29 is connected with four adjusting screw rod assemblies 32 through lifting ropes 28, and the adjusting screw rod assemblies 32 are connected to the inner wall of the bottom of the weighing platform 34 through threads; the outer wall of the top of the weighing platform 34 is embedded with a first level bubble 31, the outer wall of the bottom of the weighing platform 34 is fixed with a balancing weight 33 through a screw, and the balancing weight 33 is of an annular structure; the display 7 and the control unit 8 are fixed on the outer wall of the top plate 6 through screws, and the control unit 8 is electrically connected with the display 7 and the pressure sensor 29 respectively; the model number of the pressure sensor 29 is PT 124G-111; by arranging the weighing platform 34, the first level bubble 31 and the pressure sensor 29, an object can be weighed conveniently, and the first level bubble 31 can be observed, and the weighing platform 34 is adjusted to be in a horizontal state by the adjusting screw assembly 32, so that the weighing precision is guaranteed, and errors are reduced; through setting up balancing weight 33, can be convenient for stabilize 34 centrobarics of weighing platform to hoisting device's stability.

For more convenient leveling; as shown in fig. 1 and 5, four corners of the bottom of the base 1 are connected with adjusting columns 13 through threads, bottom ends of the adjusting columns 13 are connected with bottom feet 21 in a sliding manner, first gears 14 are processed on the outer circumferential walls of the adjusting columns 13, and second leveling bubbles 15 are embedded in the inner wall of the top of the base 1; through setting up adjusting column 13 and 15 isotructures of second air level, can become the regulation level with the Weichafang, can be convenient for detect the reliability of device simultaneously according to first air level 31 and second air level 15.

In order to guarantee the adjustment precision; as shown in fig. 5, an adjusting rod 27 is rotatably connected to the inner wall of one side of the bottom foot 21, the adjusting rod 27 is slidably connected to the inner wall of the bottom of the base 1, a second gear 26 is processed on the outer wall of the circumference of the adjusting rod 27, the second gear 26 is meshed with the first gear 14, an adjusting wheel 25 is fixed at the bottom end of the adjusting rod 27 through a screw, and the adjusting wheel 25 rotates on the inner wall of the bottom foot 21; the radius of the second gear 26 is smaller than the radius of the first gear 14; through setting up regulating wheel 25, second gear 26 isotructure, played the effect of speed reduction when adjusting to the regulation precision has been ensured.

To facilitate detection of levelness; as shown in fig. 1, 3 and 6, a reference rope 30 is connected to the bottom center of the pressure sensor 29 through a lifting rope 28, and an angle line 18 is arranged on the outer wall of one side of each of the side plate 12 and the back plate 37; by providing the angle line 18 and the reference string 30, the base 1 can be placed on the detection surface, and the levelness of the detection surface can be determined based on the angle line 18 by utilizing the natural sagging of the gravity of the reference string 30.

In order to improve the detection effect; as shown in fig. 1-3 and 7, the outer wall of one side of the side plate 12 and the outer wall of one side of the back plate 37 are rotatably connected with a rotating frame 11 with a self-locking function, the outer wall of one side of the rotating frame 11 is fixed with a bar-shaped spot lamp 35 through screws, the rotating frame 11 is matched with the angle line 18 and the reference rope 30 in position, and the length of the bar-shaped spot lamp 35 is greater than that of the reference rope 30; angle line 18 is recess formula structure, through setting up rotating turret 11 and bar shot-light 35, can rotate rotating turret 11 and make the light that bar shot-light 35 jetted out aim at datum line 30 to judge the plane gradient according to the light that maps in angle line 18 department, promoted detection effect, because angle line 18 is recess formula structure, can promote the judgement accuracy when light maps, do benefit to the audio-visual impression of teaching process simultaneously, be convenient for understand.

In order to improve the use convenience; as shown in fig. 3 and 7, angle sensors 10 are mounted on the shafts of the rotating frames 11, the angle sensors 10 are electrically connected with the control unit 8, and the type of the angle sensors 10 is QY1503-ANA 5E; since the tilt angle can only be calculated by at least two light rays mapped at the angle line 18; through setting up angle sensor 10, can directly calculate and feed back to on the display 7 through the signal that control unit 8 transmitted angle sensor 10, promoted practicality and convenience.

To facilitate further teaching; as shown in fig. 3 and 4, the inner walls of the side plates 12 and the back plate 37 on one side are both provided with sliding grooves 19, the inner walls of the sliding grooves 19 are both connected with sliding blocks 36 in a sliding manner, the outer wall of one end of each sliding block 36 is rotatably connected with a self-locking rotating base 20, the inner wall of each rotating base 20 is fixed with a sliding base 22 through screws, the inner wall of each sliding base 22 is connected with a sliding rod 24 in a sliding manner, friction force exists between each sliding base 22 and each sliding rod 24, and the friction force is; through setting up slide bar 24 and slider 36 isotructure, can be convenient for to the visual illusion impart knowledge to students, be convenient for compare the isometric or not isometric object of different angles on being located different planes to promote the teaching quality, promoted the functionality of device.

To facilitate unfolding of the side panels 12 and top panel 6; as shown in fig. 2, the magnets 16 are fixed between the back plate 37 and the top plate 6 and between the side plates 12 through fasteners; the hinge 17 is of an embedded structure, the fixing mechanism comprises a top plate 6 and a fixing pin 9, the fixing pin 9 is respectively inserted into the inner walls of the two sides of the top plate 6 and one side of the outer wall of the top of the two side plates 12, and the spring 5 is welded between one outer wall of the fixing pin 9 and the outer wall of the top plate 6; the sliding grooves 19 are all positioned on the same horizontal line; by arranging the magnets 16, the fixing pins 9 and other structures, the fixing pins 9 can be conveniently lifted to unlock the side plates 12, so that the top plate 6 and the side plates 12 are turned over to be on the same plane with the back plate 37 and are adsorbed and fixed through the magnets 16; therefore, the three sliding grooves 19 are connected, and in addition, the rotating seat 20 can conveniently slide in each sliding groove 19, so that comparison of each sliding rod 24 is facilitated, and the teaching effect is improved.

In order to further improve the teaching effect; as shown in fig. 4, the circumference outer wall of the slide bar 24 is provided with scale marks 23, and by arranging the scale marks 23, the observation and the comparison can be more intuitively performed, so that the teaching effect is further improved.

In order to improve the connection reliability; as shown in fig. 1, a buckle 2 is fixed on the outer wall of one side of the door panel 3 through a screw, a buckle seat matched with the buckle 2 is fixed on the outer wall of one side plate 12 through a screw, and a sealing ring 4 is bonded on the outer wall of the periphery of the door panel 3; through setting up buckle 2 and sealing washer 4, can be convenient fix door plant 3 and curb plate 12 to provide a relatively sealed environment, avoid receiving factor influences such as wind-force when weighing, reduced the error, promoted the precision of weighing, be convenient for accomodate simultaneously.

When the teaching aid is used, a user can select different teaching functions to carry out teaching according to requirements, and the teaching specifically comprises weighing measurement teaching, levelness measurement teaching and visual error teaching; the teaching method comprises the specific steps that the second gear 26 and the electric first gear 14 rotate through the rotation of the adjusting wheel 25, the adjusting column 13 rotates in the base 1, the level of the base 1 is adjusted according to the observation of the second air level 15, the level of the weighing platform 34 is adjusted through observing the first air level 31 through the rotation of the adjusting screw assembly 32, an object to be weighed is placed on the weighing platform 34, the pressure sensor 29 transmits a signal to the control unit 8 and then feeds the signal back to the display 7, and in addition, a user can obtain a measurement value with a large error through damaging the levels of the base 1 and the weighing platform 34, visual comparison is carried out, and memory is deepened; the levelness measurement teaching is specifically that a user places a base 1 on a standard horizontal plane, adjusts an adjusting wheel 25 and observes a second level bubble 15 to enable the base 1 to be horizontal, then places the base 1 on a plane to be measured, if the plane to be measured has a certain inclination angle, a reference rope 30 naturally sags due to gravity, the user rotates a side plate 12 and a rotating frame 11 on a back plate 37 to enable light emitted by a bar-shaped spotlight 35 to cover the surface of the reference rope 30, an angle sensor 10 transmits angle information of the rotation of the rotating frame 11 to a control unit 8, the control unit 8 calculates to obtain inclination and feeds the inclination back to a display 7, because the length of the bar-shaped spotlight 35 is greater than that of the reference rope 30, the exceeding part is mapped onto an angle line 18, and the user can perform checking calculation through the angle line 18 to perform verification teaching; the visual error teaching is specifically that a user debugs the rotary base 20, places the rotary base 20 at different positions on different planes, and simultaneously can form different angles between the sliding rod 24 and the horizontal plane, or adjust the length of the sliding rod 24 extending out of the sliding seat 22, and then the sliding rod 24 is observed by a student, and finally places the rotary base 20 at one position for comparison to confirm the visual error, thereby deepening the memory and improving the teaching quality; the operation of placing the rotary seat 20 at one position is specifically to unlock the side plate 12 by pulling the fixing pin 9, turn the top plate 6 and the side plate 12 to the same plane with the back plate 37, and fix the side plate by the magnet 16; therefore, the three sliding grooves 19 are connected, and in addition, the rotating seat 20 can conveniently slide in each sliding groove 19, so that comparison of each sliding rod 24 is facilitated, and the teaching effect is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention, and the technical solutions and the inventive concepts of the present invention with equivalent substitutions or changes.

Claims (2)

1. An explanation device with a function of reducing measurement errors comprises a base (1), a back plate (37) and a weighing mechanism, and is characterized in that the outer wall of the bottom of the back plate (37) is integrally arranged on the outer wall of the top of the base (1), and the outer walls of two sides and the outer wall of the top of the back plate (37) are respectively provided with two side plates (12) and a top plate (6) through three groups of hinges (17); the outer wall of one side plate (12) is provided with a door plate (3) through a hinge (17), and the door plate (3), the top plate (6), the back plate (37) and the two side plates (12) are all made of transparent acrylic materials; the top plate (6) is also provided with a fixing mechanism for fixing the top plate (6) and the side plate (12); the weighing mechanism is arranged on the outer wall of the bottom of the top plate (6), the weighing mechanism comprises a pressure sensor (29) and a weighing platform (34), the pressure sensor (29) is fixed on the outer wall of the bottom of the top plate (6) through screws, the outer wall of the bottom of the pressure sensor (29) is connected with four adjusting screw rod assemblies (32) through lifting ropes (28), and the adjusting screw rod assemblies (32) are connected to the inner wall of the bottom of the weighing platform (34) through threads; the outer wall of the top of the weighing platform (34) is embedded with a first level bubble (31), the outer wall of the bottom of the weighing platform (34) is fixed with a balancing weight (33) through a screw, and the balancing weight (33) is of an annular structure; the outer wall of the top plate (6) is fixed with a display (7) and a control unit (8) through screws, and the control unit (8) is electrically connected with the display (7) and the pressure sensor (29) respectively.

2. The explanation device with the function of reducing the measurement error is characterized in that four corners of the bottom of the base (1) are respectively connected with an adjusting column (13) through threads, a bottom end of the adjusting column (13) is slidably connected with a foot (21), a first gear (14) is machined on the outer circumferential wall of the adjusting column (13), and a second level bubble (15) is embedded on the inner wall of the top of the base (1).

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