CN112991891B - Two-way adjustable double slit device of inserted sheet formula - Google Patents
Two-way adjustable double slit device of inserted sheet formula Download PDFInfo
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Abstract
The utility model belongs to the technical field of double-slit experimental equipment, and particularly relates to an inserting sheet type bidirectional adjustable double-slit device. According to the utility model, by arranging the double-slit plugboard unit, the baffle plate unit and the plugboard placing frame unit on the vertical bottom board unit, the effect that two parameters of the slit distance and the slit width of the double-slit device can be flexibly adjusted is achieved. The double-slit device has the advantages of reasonable and effective structure, simple and convenient operation of adjusting two parameters of slit width and slit distance, high stability before and after adjustment, difficult occurrence of unexpected deviation, flexible and ingenious use mode of the double-slit plugboard units which are used one by one and are overlapped with narrower vertical connecting strips at the back, compact and stable structure of the whole double-slit device, and higher efficiency and comprehensiveness when being used for optical experiments.
Description
Technical Field
The utility model belongs to the technical field of double-slit experimental equipment, and particularly relates to an inserting sheet type bidirectional adjustable double-slit device.
Background
In the prior art, the double seam of the double seam experiment is fixed, so that the double seam parameters are not adjustable, and particularly, the seam width and the seam distance are fixed, so that certain limitations are caused on teaching exploration of theories and experiments such as optical double seam interference, so that teaching cannot be conducted to deepen understanding of double seam interference knowledge through a manual experiment, and optical partial experimental research is limited.
Therefore, in summary, an improved dual-slit device with adjustable slit width and slit distance and asymmetrically adjustable slit distance is needed to satisfy the teaching experiments of various diffraction systems, interference systems and spectroscopic and optical selection systems.
The patent publication No. CN210039349U, chinese patent publication No. 2020.02.07 discloses a test device for measuring optical wavelength by double slit interferometry, which comprises a laser pen, a double slit sheet device, a smoke box, a photovoltaic cell, a digital ammeter and an optical bench, wherein the lower part of the laser pen is connected with a mounting seat, the mounting seat is arranged on the optical bench, the side edge of the laser pen is provided with the double slit sheet device, and the double slit sheet device comprises a fixed support, a double slit sheet and an adjustable tool seat.
However, in the double-slit interference device disclosed by the utility model, two parameters of the slit width and the slit distance of the double-slit sheet device are inconvenient to adjust, so that the problem that the double-slit interference device is not flexible and convenient to use exists.
Disclosure of Invention
The utility model provides an inserting sheet type bidirectional adjustable double-slit device, which can achieve the effect that two parameters of a slit distance and a slit width of the double-slit device can be flexibly adjusted by arranging a double-slit inserting plate unit, a baffle plate unit and an inserting plate placing frame unit on a vertical bottom plate unit, namely the bidirectional adjustable double-slit device has the meaning.
The utility model adopts the technical proposal that: the utility model provides a two-way adjustable double slit device of inserted sheet, includes vertical bottom plate unit, sets up on the vertical bottom plate unit side and through inserting the mode of using one by one with a plurality of double slit picture peg unit that is used for providing the double slit structure of different slit distance, and set up on the vertical bottom plate unit side and be located respectively double slit picture peg unit's both sides position department is used for adjusting two baffle units of effective double slit width through relatively close mode.
The further preferable technical scheme is as follows: the vertical bottom plate unit comprises a vertical plate, plate body fixing holes which are arranged on the vertical plate and used for penetrating light rays, a baffle plate unit which is arranged on the side face of the vertical plate and is positioned at the position below the plate body fixing holes and used for clamping and limiting sliding, a clamping plate part which is used for clamping and fixing the double-slit plugboard unit, and two groups of thread grooves which are arranged on the side face of the vertical plate and are respectively positioned at the positions of two sides of the plate body fixing holes and are respectively used for installing two baffle plate units.
The further preferable technical scheme is as follows: the clamping plate portion comprises a transverse supporting plate which is vertically arranged on the side face of the vertical plate and located at the position below the plate body fixing hole, a transverse clamping plate which is arranged on the upper surface of the transverse supporting plate and parallel to the vertical plate and used for inwards clamping the baffle unit, and two vertical clamping plates which are arranged on the upper surface of the transverse supporting plate and located at the positions of two sides of the plate body fixing hole and used for clamping and fixing the double-slit plugboard unit.
The further preferable technical scheme is as follows: the double-slit plugboard unit comprises a rectangular board body which is inserted between the two vertical clamping boards, board body openings which are arranged on the rectangular board body and still have a mode of light passing through the openings after being overlapped with the board body fixing holes so as to form an initial double-slit structure, and vertical connecting strips which are arranged in the board body openings and are used for forming double-slit distances.
The further preferable technical scheme is as follows: the baffle unit comprises a vertical fixing plate arranged on the thread groove through bolts, a movable plate with the lower end inserted between the transverse supporting plate and the transverse clamping plate, a reset spring arranged on one vertical side surface of the movable plate and used for connecting the vertical fixing plate, a right-angle trapezoid plate arranged on the other vertical side surface of the movable plate and positioned on the outer side of the rectangular plate body and used for being effectively provided with two slits on the outer side edges of an acute angle edge, and an adjusting bolt which is in threaded connection with the vertical fixing plate and used for transversely pushing the movable plate.
The further preferable technical scheme is as follows: the number of the double-slot plugboard units is 6, and the widths of the vertical connecting strips of the 6 double-slot plugboard units are 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0mm in sequence from small to large.
The further preferable technical scheme is as follows: the vertical plate is different from the baffle plate unit in that the baffle plate unit is provided with a plugboard placing frame unit for placing the rest 5 double-slit plugboard units, the double-slit plugboard units which are idle in the middle position are horizontally overlapped with the double-slit plugboard units which are being used on the other side, the vertical connecting strip width of the double-slit plugboard units which are idle in the middle position is smaller than that of the double-slit plugboard units which are being used on the other side, and the double-slit plugboard units with the vertical connecting strip width of 0.5mm are taken out when the double-slit plugboard units which are idle in the middle position on the other side are used.
The further preferable technical scheme is as follows: the plugboard placing frame unit comprises a bottom plate strip arranged on the side face of the vertical plate, two vertical battens respectively arranged at the two ends of the bottom plate strip, and a connecting strip protection plate with two ends respectively arranged on the two vertical battens and used for exposing an upper edge to be hooked and provided with holes on the plate body in a pull-down mode.
The further preferable technical scheme is as follows: the plugboard placing frame unit further comprises side grooves which are arranged on the vertical opposite inner side surfaces of the vertical battens and used for inserting and installing the connecting strip protection plates, two vertical pore canals which are respectively arranged at two ends of the connecting strip protection plates, vertical fixing rods which are arranged on the inner top surfaces of the side grooves and used for inserting the vertical pore canals, and supporting springs which are sleeved on the vertical fixing rods and located below the connecting strip protection plates and used for jacking up the connecting strip protection plates.
The further preferable technical scheme is as follows: and a fracture for loading and unloading the supporting spring is arranged between the lower end surface of the vertical fixing rod and the inner bottom surface of the side surface groove.
The double-slit device has the advantages of reasonable and effective structure, simple and convenient operation of adjusting two parameters of slit width and slit distance, high stability before and after adjustment, difficult occurrence of unexpected deviation, flexible and ingenious use mode of the double-slit plugboard units which are used one by one and are overlapped with narrower vertical connecting strips at the back, compact and stable structure of the whole double-slit device, and higher efficiency and comprehensiveness when being used for optical experiments.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the present utility model in a top view.
Fig. 3 is a schematic structural view of the baffle unit in the present utility model in a top view.
Fig. 4 is a schematic view of the vertical floor unit according to the present utility model in a front view.
Fig. 5 is a schematic view showing a position structure of the engaging plate portion in a side view.
Fig. 6 is a schematic structural view of a dual slot board unit according to the present utility model.
Fig. 7 is a schematic view showing the position structure of the board mount unit in the present utility model.
Fig. 8 is a schematic view of the use of the support spring of the present utility model.
Detailed Description
The following description is of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model.
Examples: as shown in fig. 1, 2, 3, 4, 5, 6, 7 and fig. 8, a two-way adjustable two-slit device of inserting sheet type comprises a vertical bottom plate unit 1, a plurality of two-slit inserting plate units 2 which are arranged on the side surface of the vertical bottom plate unit 1 and are used for providing two-slit structures with different slit distances in a one-by-one inserting manner, and two baffle units 3 which are arranged on the side surface of the vertical bottom plate unit 1 and are respectively positioned at two side positions of the two-slit inserting plate units 2 and are used for adjusting effective two-slit widths in a relatively close manner.
In this embodiment, the meaning of "bidirectional adjustable" is that the slit distance and the slit width of the double slit are adjustable, so that the subsequent optical experiment teaching is convenient, the "inserting sheet" refers to the mode of adjusting the slit distance, that is, the multiple double slit inserting plate units 2 with different slit distances are used alternately one by one, and finally, the two baffle units 3 are pushed from two sides to the middle, so that the self-belt slit width of the double slit inserting plate unit 2 can be reduced, and finally, the purpose that the two parameters of the slit distance and the slit width of the double slit structure can be flexibly adjusted is realized, so that the teaching effect of the double slit experiment is finally improved.
The vertical bottom plate unit 1 comprises a vertical plate 101, a plate body fixing hole 102 which is arranged on the vertical plate 101 and used for penetrating light, a baffle plate unit 3 which is arranged on the side surface of the vertical plate 101 and positioned below the plate body fixing hole 102 and used for clamping and limiting sliding, a clamping plate part 103 which is used for clamping and fixing the double-slit plugboard unit 2, and two groups of thread grooves 104 which are arranged on the side surface of the vertical plate 101 and respectively positioned at two side positions of the plate body fixing hole 102 and respectively used for installing two baffle plate units 3.
In this embodiment, the initial double-slit structure is a double-slit structure of the double-slit board unit 2, so that the opening position of the board body fixing hole 102 is firstly aligned with the use position of the double-slit board unit 2, and secondly, the vertical length and width dimension is greater than or equal to the dimension of the double-slit structure of the double-slit board unit 2, so that the effective double-slit structure is more stable and accurate.
Next, the purpose of the engagement plate portion 103 is two: firstly, the double-slot plugboard unit 2 in fixed use is blocked, so that the double-slot plugboard unit is prevented from accidentally loosening and falling; and secondly, the baffle unit 3 in the process of clamping and limiting movement can be prevented from accidentally falling in an inclined manner, and only stable left-right back-and-forth sliding is ensured.
The clamping plate portion 103 comprises a transverse supporting plate 103a vertically arranged on the side surface of the vertical plate 101 and located at the position below the plate body fixing hole 102, a transverse clamping plate 103b which is arranged on the upper surface of the transverse supporting plate 103a and parallel to the vertical plate 101 and used for inwards clamping the baffle unit 3, and two vertical clamping plates 103c which are arranged on the upper surface of the transverse supporting plate 103a and located at the positions of two sides of the plate body fixing hole 102 and used for clamping and fixing the double-slot plug-in plate unit 2.
In this embodiment, the lateral support plate 103a and the two vertical clamping plates 103c form a U-shaped structure under a front view angle, which is used for fixing the dual-slot board inserting unit 2 in use, and the vertical plate 101, the lateral support plate 103a and the lateral clamping plates 103b form a U-shaped structure under a side view angle, which is used for limiting the baffle unit 3 in clamping sliding.
In addition, the two baffle units 3 are arranged outside the double-slit board units 2 in use, so that the baffle units 3 are not easy to turn outwards and fall, and the double-slit board units 2 are not easy to fall.
The double slit board unit 2 includes a rectangular board 201 for being inserted between the two vertical clamping boards 103c, a board opening 202 provided on the rectangular board 201 and still having a light passing through the opening for forming the initial double slit structure by overlapping with the board fixing hole 102, and a vertical connecting bar 203 provided in the board opening 202 for forming the double slit distance.
In this embodiment, the width of the upper and lower sides of the plate body fixing hole 102 is the vertical width of the actual double seam, and the two vertical sides of the vertical connecting strip 203 are the two inner sides of the actual double seam, so that special attention should be paid to the protection operation of the vertical connecting strip 203, so long as the sides of the vertical connecting strip 203 become rough, the final double seam experimental effect diagram will be affected.
The baffle unit 3 includes a vertical fixing plate 302 mounted on the screw groove 104 by a bolt 301, a movable plate 303 having a lower end inserted between the lateral support plate 103a and the lateral engagement plate 103b, a return spring 304 provided on one of the vertical sides of the movable plate 303 and adapted to connect the vertical fixing plate 302, a right-angled trapezoidal plate 305 provided on the other vertical side of the movable plate 303 and positioned outside the rectangular plate 201 and having an acute angle edge as an effective double-slit outer side, and an adjusting bolt 306 screwed on the vertical fixing plate 302 and adapted to push the movable plate 303 laterally.
In this embodiment, the acute edges of the two right-angled trapezoidal plates 305 are two outer sides of the actual effective double-slit structure, that is, the adjusting bolt 306 pushes the right-angled trapezoidal plates 305 inward, so that the slit width of the effective double-slit structure can be reduced, whereas the adjusting bolt 306 is released to two sides, the return spring 304 can pull the two right-angled trapezoidal plates 305 apart to two sides, and the effect of increasing the slit width of the double-slit structure is achieved, which is very simple, stable and efficient.
It should be noted that: firstly, the thickness difference between the inner side surface of the movable plate 303 and the inner side surface of the right-angled trapezoidal plate 305 is the thickness of the double-slot board unit 2, so that the double-slot board unit 2 can be ensured to be clamped stably; second, the thickness of the movable plate 303 is the thickness of the space on the inner side of the lateral support plate 103a, which is located in the lateral engagement plate 103b, so that the outer side of the movable plate 303 and the outer side of the right-angle trapezoid plate 305 can be stably attached to and slid on the inner side of the lateral engagement plate 103 b.
The number of the double-slot board inserting units 2 is 6, and the widths of the vertical connecting strips 203 of the 6 double-slot board inserting units 2 are 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0mm from small to large. The vertical plate 101 is different from the baffle unit 3 in that the side surface is provided with a board placing frame unit 4 for placing the rest 5 double-slit board units 2, the double-slit board units 2 with idle middle positions are horizontally overlapped with the double-slit board units 2 used on the other side, the vertical connecting strips 203 of the double-slit board units 2 with idle middle positions are smaller than the double-slit board units 2 used on the other side, and the double-slit board units 2 with the vertical connecting strips 203 with the widths of 0.5mm are taken out when the double-slit board units 2 with idle middle positions on the other side are used.
In this embodiment, 6 of the two-slit board units 2 have 6 vertical connection bars 203 with widths of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0mm, which can completely meet the teaching requirements of the daily two-slit interference experiment, and particularly important two points are as follows.
Firstly, the distribution mode of the 6 double-slit board units 2 is that the 1 double-slit board units 2 in use are positioned on the front side, namely between the two baffle units 3, and the rest 5 double-slit board units 2 are positioned on the board placing frame unit 4 on the back side, so that the structure of the whole double-slit device is more compact and efficient.
Secondly, the remaining 5 double-slit board units 2 are arranged in rows, the middle double-slit board unit 2 is the smallest double-slit board unit 2 with the vertical connecting strip 203 of 0.5mm, and thus the vertical connecting strip 203 of the double-slit board unit 2 in front use can completely cover the smallest vertical connecting strip 203, and the double-slit interference experiment is not influenced.
The board setting rack unit 4 comprises a bottom board strip 401 arranged on the side surface of the vertical board 101, two vertical board strips 402 respectively arranged at two ends of the bottom board strip 401, and a connecting strip protection board 403 respectively arranged on the two vertical board strips 402 at two ends and used for exposing the board body opening 202 with the upper edge to be hooked in a pull-down mode. The board mount unit 4 further includes side grooves 404 disposed on vertically opposite inner sides of the vertical battens 402 and used for inserting and mounting the connection bar protection boards 403, two vertical channels 405 disposed at two ends of the connection bar protection boards 403 respectively, vertical fixing rods 406 disposed on inner top surfaces of the side grooves 404 and used for inserting the vertical channels 405, and supporting springs 407 sleeved on the vertical fixing rods 406 and located below the connection bar protection boards 403 and used for jacking up the connection bar protection boards 403. A fracture for loading and unloading the supporting spring 407 is arranged between the lower end surface of the vertical fixing rod 406 and the inner bottom surface of the side surface groove 404.
In this embodiment, the distance between the opposite inner sides of the two vertical slats 402 is the sum of the widths of 5 two double-slit board units 2, and the left double-slit board unit 2 in the middle position is aligned with the double-slit board unit 2 in use at the other side, and finally, when the double-slit board unit 2 with the width of 0.5mm is in use, any one of the left double-slit board units 2 cannot be placed at the back, at this time, more than one double-slit board unit 2 needs to be temporarily placed elsewhere, and more suitably, the middle of the double-slit board units 2 with the width of 0.5mm, preferably, the middle of 5 double-slit board units 2 is in use, so as to ensure that the vertical connecting strips 203 can be completely covered before and after.
In addition, the connecting bar protection plate 403 is used for completely covering all the plate body openings 202, so as to protect the vertical connecting bars 203 with higher safety requirements, so that all 5 double-slot board units 2 are not easy to be taken out upwards, and the solution is as follows.
First, the initial connecting bar protecting plate 403 located at a relatively high position is pressed down, that is, the supporting springs 407 are compressed, and then the upper edges of the openings 202 of the 5 board body openings of the double-slit board units 2 are exposed, so that any one of the double-slit board units 2 can be easily taken out by hooking the upper edges of the openings with a finger.
Secondly, the vertical fixing rod 406 is connected with the inner top surface of the side slot 404 after being inserted into the vertical hole 405 in advance, so as to ensure the installation effectiveness of the whole structure, the fracture facilitates the installation and replacement of the supporting spring 407, and the supporting spring 407 enables the connecting strip protecting plate 403 to be located at a relatively high position and cover and protect the whole plate body opening 202, and the upper edge of the opening of the plate body opening 202 capable of taking out the applied force after being pulled down can be exposed, so that 6 double-slit plugboard units 2 can be effectively and conveniently used alternately one by one.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various modifications may be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. These are all non-inventive modifications which are intended to be protected by the patent laws within the scope of the appended claims.
Claims (3)
1. The utility model provides a two-way adjustable double slit device of inserted sheet which characterized in that: comprises a vertical bottom plate unit (1), a plurality of double-slit flashboard units (2) which are arranged on the side surface of the vertical bottom plate unit (1) and are used for providing double-slit structures with different slit distances in a way of being inserted and used one by one, and two baffle units (3) which are arranged on the side surface of the vertical bottom plate unit (1) and are respectively positioned at two side positions of the double-slit flashboard units (2) and are used for adjusting effective double-slit widths in a relatively approaching way,
the vertical bottom plate unit (1) comprises a vertical plate (101), a plate body fixing hole (102) which is arranged on the vertical plate (101) and used for penetrating light, a baffle plate unit (3) which is arranged on the side surface of the vertical plate (101) and is positioned below the plate body fixing hole (102) and used for clamping and limiting sliding, a clamping plate part (103) which is used for clamping and fixing the double-slit plugboard unit (2), and two groups of thread grooves (104) which are arranged on the side surface of the vertical plate (101) and are respectively positioned at the two sides of the plate body fixing hole (102) and are respectively used for installing two baffle plate units (3),
the clamping plate part (103) comprises a transverse supporting plate (103 a) vertically arranged on the side surface of the vertical plate (101) and positioned below the plate body fixing hole (102), a transverse clamping plate (103 b) which is arranged on the upper surface of the transverse supporting plate (103 a) and parallel to the vertical plate (101) and used for inwards clamping the baffle unit (3), and two vertical clamping plates (103 c) which are arranged on the upper surface of the transverse supporting plate (103 a) and respectively positioned at the two sides of the plate body fixing hole (102) and used for clamping and fixing the double-slit plugboard unit (2),
the double-slit plugboard unit (2) comprises a rectangular board body (201) which is used for being inserted between two vertical clamping boards (103 c), a board body opening (202) which is arranged on the rectangular board body (201) and still has a light ray passing through the opening mode for forming an initial double-slit structure after being overlapped with the board body fixing hole (102), and a vertical connecting strip (203) which is arranged in the board body opening (202) and is used for forming a double-slit distance,
the number of the double-slot picture-inserting units (2) is 6, the widths of the vertical connecting strips (203) of the 6 double-slot picture-inserting units (2) are 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0mm from small to large in sequence,
the vertical plate (101) is different from the baffle plate unit (3), the side surface of the baffle plate unit (3) is provided with a board placing frame unit (4) for placing the rest 5 double-slit board units (2), the double-slit board units (2) which are idle in the middle position are horizontally overlapped with the double-slit board units (2) which are being used on the other side, the width of a vertical connecting strip (203) of the double-slit board units (2) which are idle in the middle position is smaller than that of the double-slit board units (2) which are being used on the other side, the double-slit board units (2) which are provided with the vertical connecting strip (203) with the width of 0.5mm are taken out when the double-slit board units (2) which are idle in the middle position on the other side are used,
the plugboard placing frame unit (4) comprises a bottom plate strip (401) arranged on the side surface of the vertical plate (101), two vertical plate strips (402) respectively arranged at the two ends of the bottom plate strip (401), and a connecting strip protecting plate (403) respectively arranged on the two vertical plate strips (402) at the two ends and used for exposing the plate body opening (202) of which the upper edge is to be hooked in a pull-down mode,
the plugboard placing frame unit (4) further comprises side grooves (404) which are formed in the vertical opposite inner sides of the vertical battens (402) and used for being inserted and installed with the connecting strip protection plates (403), two vertical pore channels (405) which are respectively formed in the two ends of the connecting strip protection plates (403), vertical fixing rods (406) which are arranged on the inner top surfaces of the side grooves (404) and used for being inserted into the vertical pore channels (405), and supporting springs (407) which are sleeved on the vertical fixing rods (406) and located below the connecting strip protection plates (403) and used for jacking up the connecting strip protection plates (403).
2. The two-way adjustable two-slit device of claim 1, wherein: the baffle unit (3) comprises a vertical fixing plate (302) which is arranged on the threaded groove (104) through a bolt (301), a movable plate (303) with the lower end inserted between the transverse supporting plate (103 a) and the transverse clamping plate (103 b), a return spring (304) which is arranged on one vertical side surface of the movable plate (303) and is used for connecting the vertical fixing plate (302), a right-angle trapezoid plate (305) which is arranged on the other vertical side surface of the movable plate (303) and is positioned on the outer side of the rectangular plate body (201) and takes an acute angle edge as an effective double-slit outer side edge, and an adjusting bolt (306) which is in threaded connection with the vertical fixing plate (302) and is used for transversely pushing the movable plate (303).
3. The two-way adjustable two-slit device of claim 1, wherein: a fracture for loading and unloading the supporting spring (407) is arranged between the lower end surface of the vertical fixing rod (406) and the inner bottom surface of the side surface groove (404).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110264584.3A CN112991891B (en) | 2021-03-11 | 2021-03-11 | Two-way adjustable double slit device of inserted sheet formula |
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| CN202110264584.3A CN112991891B (en) | 2021-03-11 | 2021-03-11 | Two-way adjustable double slit device of inserted sheet formula |
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| CN112991891B true CN112991891B (en) | 2023-06-06 |
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