High-precision adjustable optical bench assembly

Abstract

The invention relates to the technical field of physics teaching aids, and particularly discloses a high-precision adjustable optical bench assembly which comprises supporting legs provided with guide rails, a plurality of supports arranged on the guide rails in a sliding mode, symmetrically-distributed clamps arranged on the supports, butt-joint openings formed in the supports, and a plurality of clamping plate pieces arranged in the butt-joint openings. The center shaft is provided with a triangular prism, and movable strips provided with thread grooves are arranged on the circumference of the outer side of the triangular prism. The center shaft is rotated in advance to enable the top angle of the triangular prism to abut against and push out the three movable strips, the threaded grooves in the outer walls of the three movable strips are the same, the clamping plate piece integrated on the support is used for achieving threaded transmission of the support, horizontal movement of the support is kept slow, and the adjustment requirement for accurate numerical values is met; the nine movable strips can obtain three kinds of thread grooves with different thread pitches, so that the distance needed by horizontal movement of the support is adjusted according to needs, accuracy is higher, numerical errors are reduced, and the distance can be adjusted and controlled more easily through manual rotation.

Description

TECHNICAL FIELD

[0001] The present application relates to physical teaching aid technology, in particular to a high-precision adjustable optical bench assembly. BACKGROUND

[0002] In the middle school physics teaching experiment, various optical experiments are involved, such as convex lens, concave lens light imaging and pinhole imaging, etc., and the optical bench is needed to complete the teaching experiment.

[0003] For example, the publication (announcement) number: CN111882961A, published (announced) on November 3, 2020, discloses an optical bench experiment instrument, which comprises a guide rail, a plurality of elements are arranged on the guide rail, the elements include a light source, a convex lens and an imaging screen, the light source, the convex lens and the imaging screen are respectively connected with the guide rail through the slide seat arranged at the bottom; further comprising: a collection part, the collection part has an angle collection unit and a distance measuring unit; signal transmission part; wherein, the angle collection unit is used for collecting the angle information of the plurality of elements, the distance measuring unit is used for collecting the distance information between the light source, the convex lens and the imaging screen, and the signal transmission part is used for receiving the data information of the collection part and sending to the upper computer. The present application has the advantages that through the collection part, the data of each operation of the students in the operation of the optical bench can be collected, and the upper computer can calculate and analyze the collected data through the standardized algorithm to judge whether the operation of the students in the experiment process is standard, whether the students can truly master, understand the subject knowledge and apply it in practice.

[0004] The deficiency of the prior art is that the traditional teaching optical bench is composed of a simple base and a plurality of slide rails, and the bracket equipped with imaging equipment (such as convex lens, concave lens and light transmission hole plate) is slid on the slide rail to achieve the purpose of adjusting the distance. When adjusting the distance required for imaging, the operator manually pushes the bracket to slide on the slide rail, resulting in low operation precision, large experimental data error and other problems; when using a motor or an electric push rod as the moving power, sudden start and stop also cannot guarantee the required predetermined distance adjustment, and the adjusted distance value is not easy to know, also with large error, and multiple adjustments will increase the risk of damage to the electric equipment. SUMMARY

[0005] The purpose of the present application is to provide a high-precision adjustable optical bench assembly to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A high-precision adjustable optical bench assembly, comprising a support leg provided with a guide rail, a plurality of brackets are slidably arranged on the guide rail, and clamps are symmetrically arranged on the brackets;

[0008] The support is also provided with a docking port, and a plurality of clamping plate members are arranged in the docking port.

[0009] The middle shaft is also provided with a triangular prism, and a movable strip with a threaded groove is arranged on the outer side of the triangular prism.

[0010] The triangular prism pushes any three movable strips radially and makes the threaded groove coupled with any clamping plate member arranged on the support under the driven rotation.

[0011] As a further description of the above technical solution: a numerical column is arranged on one side of the support leg, and a plurality of scale plates are arranged on the numerical column.

[0012] As a further description of the above technical solution: a round hole is arranged on the outer side of the guide rail.

[0013] As a further description of the above technical solution: a lower support plate is fixedly arranged on the support, and a guide rod is fixedly arranged between the two lower support plates.

[0014] The clamping plate member slides on the guide rod.

[0015] As a further description of the above technical solution: a driving member provided with a bidirectional threaded rod is also included, and the bidirectional threaded rod is threadedly connected with the clamping plate member.

[0016] As a further description of the above technical solution: a clamping opening is arranged on the clamping plate member and communicates with the docking port.

[0017] As a further description of the above technical solution: a protection frame for the rotation of the middle shaft is fixedly arranged on the support leg.

[0018] As a further description of the above technical solution: a multi-edge slot is arranged on the middle shaft, and a knob slides on the outer side of the multi-edge slot.

[0019] As a further description of the above technical solution: a rotating seat provided with a plurality of embedded holes is also included, and a sliding strip is fixedly arranged at the end of the movable strip and slides in the embedded hole.

[0020] As a further description of the above technical solution: a plug is arranged on the rotating seat, and a socket is fixedly arranged on the knob and is plugged and matched with the plug.

[0021] In the above technical solution, the high-precision adjustable optical bench assembly has the following advantages: the top angle of the triangular prism pushes out the three movable strips by pre-rotating the middle shaft, the thread grooves of the outer walls of the three movable strips are the same, the clamping plate integrated on the support is used to realize the threaded transmission support, the horizontal movement of the support is kept slow, the adjustment of the precise value is met, nine movable strips are arranged to obtain three different thread grooves, the required distance of the horizontal movement of the support can be adjusted as needed, the precision is higher, the numerical error is reduced, and the distance adjustment of the support is guaranteed by manual rotation control during the adjustment process. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0023] Figure 1 The optical bench schematic diagram provided by the embodiment of the present application;

[0024] Figure 2 The optical bench center driving component and support assembly schematic diagram provided by the embodiment of the present application;

[0025] Figure 3 The center driving component schematic diagram obtained by combining the plurality of movable strips and the middle shaft provided by the embodiment of the present application;

[0026] Figure 4 The center driving component side schematic diagram obtained by combining the plurality of movable strips and the middle shaft provided by the embodiment of the present application;

[0027] Figure 5 The right side schematic diagram of the transfer seat and knob explosion provided by the embodiment of the present application;

[0028] Figure 6 The left side schematic diagram of the transfer seat and knob explosion provided by the embodiment of the present application;

[0029] Figure 7 The support and plurality of clamping plate assembly side schematic diagram provided by the embodiment of the present application;

[0030] Figure 8 The support and plurality of clamping plate assembly explosion schematic diagram provided by the embodiment of the present application;

[0031] Figure 9 The clamping plate and driving piece explosion schematic diagram provided by the embodiment of the present application.

[0032] Explanation of reference signs:

[0033] 1, leg; 11, guard frame; 12, guide rail; 2, numerical column; 21, scale plate; 22, rotating shaft; 3, support; 30, round hole; 31, upper support plate; 32, clamp; 33, lower support plate; 34, docking port; 35, mounting port; 4, movable strip; 41, threaded groove; 42, sliding strip; 43, elastic strip; 5, central shaft; 51, triangular prism; 52, multi-edge notch; 6, rotating seat; 61, embedded hole; 62, plug; 7, knob; 71, first elastic member; 72, multi-edge hole; 73, socket; 8, clamping member; 81, clamping port; 82, second elastic member; 9, driving member; 91, bidirectional threaded rod; 92, rotating rod; 93, guide rod. DETAILED DESCRIPTION

[0034] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0035] Please refer to Figures 1-9 The embodiment of the present application provides a technical scheme: a high-precision adjustable optical bench assembly, comprising a leg 1 provided with a guide rail 12, a plurality of supports 3 are slidably arranged on the guide rail 12, and the supports 3 are provided with symmetrically distributed clamps 32;

[0036] The supports 3 are also provided with docking ports 34, and a plurality of clamping members 8 are arranged in the docking ports 34;

[0037] Further comprising a central shaft 5 provided with a triangular prism 51, and a movable strip 4 provided with a threaded groove 41 is arranged on the outer side of the triangular prism 51;

[0038] The top corner of the triangular prism 51 pushes any three movable strips 4 radially when driven to rotate, and the threaded groove 41 is coupled with any clamping member 8 arranged on the support 3.

[0039] Specifically, the legs 1 are symmetrically distributed and are made of alloy metal material, and anti-skid pads are installed at the bottom to meet the teaching placement requirements. The guide rail 12 is specifically a stainless steel hollow pipe, and is clamped or bolted and fastened on the leg 1, which is prior art and will not be described here.

[0040] Further, the upper support plate 31 is welded on the support 3, the clamp 32 is integrally formed on the upper support plate 31, and the clamp 32 can be bonded with an anti-skid rubber pad, which is used to insert and fit the imaging equipment (such as convex lens, concave lens, light transmission hole plate) with a rectangular shell, so that the optical bench is more convenient when assembling parts.

[0041] Further, the inner diameter of the docking port 34 is greater than the outer diameter of all the movable strips 4 arranged in the circumferential direction, but the outer wall of the movable strip 4 pushed by the triangular prism 51 is fitted to the inner wall of the docking port 34, so as to ensure the rotation stability during the threaded connection process.

[0042] Further, the arc-shaped movable strips 4 are recessed in the inner diameter and used for inlaid contact with the rounded rear top corner of the triangular prism 51, so as to avoid the top corner of the triangular prism 51 from being separated from the movable strips 4.

[0043] Further, when the triangular prism 51 is not in contact with any movable strip 4, the top corner of the triangular prism 51 is inserted into the gap between the adjacent movable strips 4, so as to ensure the stability of all the movable strips 4 in the static state.

[0044] By pre-rotating the central shaft 5, the top corner of the triangular prism 51 pushes out three movable strips 4, and the thread grooves 41 of the outer walls of the three movable strips 4 are the same, and then the clamping plate 8 integrated on the support 3 is used to realize the threaded transmission of the support 3, so that the horizontal movement of the support 3 is kept slow, and the adjustment requirement of the accurate value is met.

[0045] Secondly, by arranging nine movable strips 4 to obtain three different pitches of the thread grooves 41, the required distance of the horizontal movement of the support 3 can be adjusted as required, the accuracy is higher, the value error is reduced, and the distance adjustment of the support 3 is ensured in the manual rotation control process.

[0046] In another embodiment provided by the present application, the leg 1 is rotatably provided with a value column 2 on one side, and the value column 2 is provided with a plurality of scale plates 21.

[0047] Specifically, the leg 1 is provided with a lengthened protrusion on one side, the protrusion is rotatably provided with a rotating shaft 22, and a rubber sleeve can be additionally arranged at the end of the rotating shaft 22, so as to prevent slipping and damping during manual rotation.

[0048] Further, the value column 2 is fixedly sleeved on the outer wall of the rotating shaft 22, and the cross section of the value column 2 is in the shape of an isosceles triangle, so that the value column 2 is provided with three surfaces on which the scale plates 21 are additionally arranged, and the three scale plates 21 display values of different accuracies and correspond to the three thread grooves 41.

[0049] Further, the scale plates 21 are connected by adhesion or bolt fixing, and the value displayed on the scale plates 21 is the prior art, which will not be described here.

[0050] By manually rotating the rotating shaft 22, any scale plate 21 can be exposed in the observation direction, and the scale plate 21 in the direction corresponds to one of the thread grooves 41, so as to facilitate the operator to read the value of the support 3 after the distance adjustment.

[0051] In another embodiment provided by the present application, a round hole 30 is arranged on the support 3 and located outside the guide rail 12.

[0052] Specifically, the circular holes 30 are symmetrically distributed on the bracket 3, and the inner diameter of the circular holes 30 matches the outer wall of the guide rail 12, so as to provide stable sliding guidance and greatly reduce the problem of shaking of the bracket 3 during horizontal movement.

[0053] The bracket 3 slides on the outer wall of the guide rail 12 through two round holes 30, which ensures the stable horizontal movement of the bracket 3. There is no need to manually push the bracket 3 to move it horizontally, which makes the value obtained by adjusting the spacing of the bracket 3 more accurate. It is easier for the operator to obtain the position value of the bracket 3 by looking at the scale plate 21.

[0054] In another embodiment of the present invention, symmetrically arranged lower support plates 33 are fixedly installed on the bracket 3, and a guide rod 93 is fixedly installed between the two lower support plates 33;

[0055] The clamping plate 8 slides on the guide rod 93.

[0056] Specifically, the lower support plate 33 and the upper support plate 31 are vertically aligned and both are fixedly mounted with guide rods 93. The guide rods 93 have end holes that connect with the holes on the lower support plate 33 and the upper support plate 31. They are then fixed with bolts for threaded connection. The fixing and hole-making methods are existing technologies and will not be elaborated here, thus ensuring the stability of the guide rods 93 during operation.

[0057] Furthermore, the guide rod 93 is specifically a solid stainless steel rod, which reduces sliding friction while ensuring structural strength.

[0058] By distributing the guide rods 93 vertically above and below the bracket 3, the stability of the individual clamping plate 8 during horizontal movement is ensured. The split clamping plate 8 allows the clamping plate 8 to move closer or further away from each other, thereby satisfying the coupling and decoupling of one of the thread grooves 41 and meeting the requirements for precise numerical adjustment.

[0059] Secondly, the bracket 3 has three equally spaced mounting ports 35, which are used to mount three clamping plates 8, so that any clamping plate 8 can be threadedly connected to the corresponding threaded groove 41, thereby facilitating the switching of three different threaded connection methods.

[0060] In another embodiment of the present invention, a driving member 9 is provided with a bidirectional threaded rod 91, and the bidirectional threaded rod 91 and the clamping plate 8 are threadedly connected.

[0061] Specifically, the drive component 9 also includes a rotating rod 92 integrally formed at both ends of the bidirectional threaded rod 91, and the end of the rotating rod 92 is provided with a groove to increase the friction during the rotation of the rotating rod 92.

[0062] Furthermore, a gap is left between adjacent clamping plates 8, thus providing sufficient operating space for adjacent rotating rods 92 in the horizontal direction, so that the operator can rotate any rotating rod 92 on the driving member 9.

[0063] Furthermore, a second elastic element 82 located outside the guide rod 93 is fixedly installed on the side wall of the clamping plate 8, and the second elastic element 82 is specifically a spring.

[0064] Rotating the swivel rod 92 causes the bidirectional threaded rod 91 to engage in threaded connection, causing the two plates of the clamping plate 8 to move closer or further apart, facilitating the coupling and decoupling of the threaded connection and making the operation more convenient.

[0065] In another embodiment of the present invention, the clamping plate 8 is provided with a clamping opening 81 that communicates and cooperates with the interface 34.

[0066] Specifically, the inner wall of the clamp 81 is threadedly connected to the threaded groove 41, and the clamp 81 is obtained from the two openings on the clamp plate 8. Therefore, the closed opening forms a complete circular clamp 81.

[0067] The clamp 81 and the mating interface 34 obtained after closure are on the same axis. This is to facilitate the threaded connection and assembly of the clamp 81 and any type of thread groove 41, making it more convenient for the operator to operate and the resulting spacing adjustment is also more efficient.

[0068] In another embodiment of the present invention, a protective frame 11 for rotating the central shaft 5 is fixedly installed on the support leg 1.

[0069] Specifically, the guard frame 11 is welded to the side wall of one of the legs 1.

[0070] The protective frame 11 protects the internal knob 7 component, providing an anti-collision function. It also facilitates the rotation operation of the knob 7 within the protective frame 11.

[0071] In another embodiment of the present invention, a polygonal groove 52 is provided on the central shaft 5, and a knob 7 is slidably provided on the outer side of the polygonal groove 52.

[0072] Specifically, the outer wall of knob 7 has a circumferentially arranged groove to provide friction when manually rotating it.

[0073] Furthermore, a first elastic element 71 is fixedly installed at the end of the knob 7. The end of the first elastic element 71 rotates on the inner wall of the guard frame 11, and the first elastic element 71 is specifically a spring.

[0074] Furthermore, the first elastic element 71 brings the knob 7 close to the rotating base 6 in the default state, and the plug 62 and socket 73 remain plugged in in the default state.

[0075] Furthermore, a polygonal hole 72 is provided at the axis of the knob 7, and the polygonal hole 72 slides against the outer wall of the polygonal groove 52.

[0076] By rotating the knob 7, and with the sliding connection between the polygonal hole 72 and the polygonal slot 52 in place, the central shaft 5 is driven to rotate, thereby achieving the rotational adjustment of the triangular prism 51 and satisfying the purpose of adjusting the required threaded groove 41.

[0077] In another embodiment of the present invention, a rotating base 6 with multiple recessed holes 61 is further included, and a slide bar 42 that slides in the recessed holes 61 is fixedly installed at the end of the movable bar 4.

[0078] Specifically, there are nine recessed holes 61, which correspond to nine sliders 42, and the sliders 42 are welded to the ends of the movable strips 4.

[0079] Furthermore, the slide bar 42 is a steel alloy rectangular rod, so the slide bar 42 has a stable radial movement capability, and an elastic strip 43 is welded radially on the side wall of the slide bar 42. The elastic strip 43 is an elastic metal sheet and is raised on the slide bar 42 in an arc shape.

[0080] Furthermore, the support leg 1 has a hole for the rotator 6 to rotate circumferentially, and the rotator 6 is limited by the hole rather than moving axially.

[0081] When the slide bar 42 is compressed and moves radially, it slides in the hole 61. At the same time, the elastic bar 43 is compressed and deformed, causing the slide bar 42 to move radially away from the axis of the central shaft 5. This makes it easier for the slide bar 42, which is driven to move radially, to actively align the threaded groove 41 on the movable bar 4 with the clamp 81 after it has closed, thus completing the transmission prerequisite for the threaded connection.

[0082] In another embodiment of the present invention, a plug 62 is provided on the rotary base 6, and a socket 73 that is plugged into and mates with the plug 62 is fixedly installed on the knob 7.

[0083] Specifically, the plug 62 is formed by opening a polygonal groove at one end of the adapter 6, and this end also extends from the support leg 1 to shorten the mating distance between the plug 62 and the socket 73. At the same time, it is also protected by the protective frame 11 to ensure the safe operation of the components.

[0084] Furthermore, the socket 73 is integrally formed on the knob 7 at a position opposite to the first elastic member 71, and the socket 73 is an annular protrusion, and the inner diameter of the protrusion has a polygonal groove that matches the plug 62 so as to realize the insertion.

[0085] The first elastic element 71 is deformed by axially pressing the knob 7. At this time, the central shaft 5 and the knob 7 are integrated, which facilitates the driving rotation of the triangular prism 51. Then, the knob 7 is released after being rotated by a specified angle, so that the plug 62 and the socket 73 are connected. At this time, the rotating base 6, the knob 7 and the central shaft 5 are integrated. Therefore, during the rotation of the knob 7, the movable bar 4 after any threaded groove 41 is connected is driven to perform threaded connection transmission, which ensures the stability of the bracket 3 during the driven translation process.

[0086] Working principle: The first elastic element 71 is deformed by axially pressing the knob 7. At this time, the central shaft 5 and the knob 7 are integrated, which facilitates the driving rotation of the triangular prism 51. The central shaft 5 is then pre-rotated so that the apex of the triangular prism 51 pushes out three movable strips 4, and the threaded grooves 41 on the outer walls of the three movable strips 4 are the same. Then, the knob 7 is released after being rotated to a specified angle, so that the plug 62 and the socket 73 are inserted. At this time, the rotating base 6, the knob 7 and the central shaft 5 are integrated. Therefore, during the rotation of the knob 7, the movable strip 4 after any of the threaded grooves 41 are connected is driven to perform threaded connection transmission. Finally, the rotating rod 92 is rotated to make the bidirectional threaded rod 91 perform threaded connection work, so that the two plates of the clamping plate 8 are brought closer to each other. This facilitates the coupling of the threaded connection, and then utilizes the clamping plate 8 integrated on the bracket 3 to realize the threaded transmission bracket 3, keeping the horizontal movement of the bracket 3 slow and meeting the needs of precise value adjustment; and during the process, the manual rotation of the shaft 22 is used to expose any scale plate 21 in the observation direction, and the scale plate 21 in this direction corresponds to one of the thread grooves 41, which makes it easy for the operator to read the value of the bracket 3 after the spacing adjustment. By setting nine movable bars 4 to obtain three different thread grooves 41, the spacing required for the horizontal movement of the bracket 3 can be adjusted as needed, with higher accuracy and reduced numerical error. Moreover, the distance adjustment of the bracket 3 is guaranteed by manual rotation control during the adjustment process.

[0087] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision adjustable optical bench assembly, characterized in that, Including the support leg (1) provided with guide rail (12), the guide rail (12) is provided with a plurality of supports (3) slidingly, the support (3) is provided with symmetrically distributed clamp (32); The support (3) is also provided with a butt joint (34), and a plurality of clamping plate pieces (8) are arranged in the butt joint (34); It also includes a middle shaft (5) provided with a triangular prism (51), and the outer side of the triangular prism (51) is circumferentially arranged with a movable strip (4) provided with a threaded groove (41); Driven to rotate, the top corner of the triangular prism (51) pushes any three movable strips (4) radially, and the threaded groove (41) is coupled with any clamping plate piece (8) arranged on the support (3).

2. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, The support leg (1) is rotatably provided with a numerical column (2) on one side, and the numerical column (2) is provided with a plurality of scale plates (21).

3. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, The support (3) is provided with a circular hole (30) outside the guide rail (12).

4. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, The support (3) is fixedly installed with symmetrically arranged lower supporting plates (33), and a guide rod (93) is fixedly installed between the two lower supporting plates (33). The clamping plate piece (8) slides on the guide rod (93).

5. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, It also includes a driving element (9) provided with a bidirectional threaded rod (91), and the bidirectional threaded rod (91) and the clamping plate piece (8) are threadedly connected.

6. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, The clamping plate piece (8) is provided with a clamping opening (81) in communication with the butt joint (34).

7. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, The support leg (1) is fixedly installed with a guard frame (11) for rotating the middle shaft (5).

8. A high precision adjustable optical bench assembly as claimed in claim 1, wherein, The middle shaft (5) is provided with a multi-edge notch (52), and the outer side of the multi-edge notch (52) is slidingly provided with a knob (7).

9. A high precision adjustable optical bench assembly according to claim 8, wherein, It also includes a rotating seat (6) provided with a plurality of embedded holes (61), and the end of the movable strip (4) is fixedly installed with a sliding strip (42) sliding in the embedded hole (61).

10. A high precision adjustable optical bench assembly according to claim 9, wherein, The rotating seat (6) is provided with a plug (62), and the knob (7) is fixedly installed with a socket (73) inserted and matched with the plug (62).

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