Electronic technology experiment box

Abstract

The invention provides an electronic technology experiment box, and belongs to the technical field of electronic technology experiments.The electronic technology experiment box comprises a box body, a box cover and a placement assembly, the box cover is used for containing experiment equipment, and the box cover is rotationally connected to the box body so that the experiment equipment contained in the box body can be protected by covering the box cover; the placement assembly is arranged outside the box body and is in transmission connection with the box cover, when the box cover is opened, the placement plate is turned over and lifted up, so that experimental apparatuses can be conveniently placed on the placement plate, an experimenter can take the experimental apparatuses conveniently, and by placing the experimental apparatuses on the placement plate, the occupied space of the experiment table is reduced; therefore, more experiment equipment or experiment apparatuses can be placed on the experiment table, and the experiment can be carried out orderly.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic technology experiment, and particularly relates to an electronic technology experiment box. BACKGROUND

[0002] With the development of electronic science and technology, especially microelectronic technology, the experimental content of digital logic circuit is constantly updated. In addition to the conventional TTL logic devices, programmable logic devices can also be used to design and simulate debugging of digital circuits with the aid of computer-aided design software. More and more people pay more attention to electronic technology experiment, and therefore the electronic technology experiment box is widely concerned. The existing electronic technology experiment box has single function, and many experimental instruments are not convenient to place and use on the narrow experiment table, which affects the orderly progress of the experiment. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art or related art.

[0004] Therefore, according to the embodiments of the present application, an electronic technology experiment box is provided, which comprises:

[0005] A box body, which is a hollow cavity with an opening at the top;

[0006] A box cover, one end of which is rotatably connected to the box body, and the box cover is fastened above the box body;

[0007] A placing assembly, which is arranged outside the box body and is in transmission connection with the box cover; the placing assembly comprises a placing plate, which is rotatably connected to the box body and is unfolded by turning over the placing plate through opening of the box cover.

[0008] In a feasible embodiment, the electronic technology experiment box further comprises:

[0009] A heat dissipation hole, which is arranged on the side wall of the box body;

[0010] A shielding assembly, which is movably arranged on the outer side wall of the box body and is in transmission connection with the placing plate, and the shielding assembly shields the heat dissipation hole by folding the placing plate.

[0011] In a feasible embodiment, the electronic technology experiment box further comprises:

[0012] A fixing seat, which is arranged on the outer side wall of the box body;

[0013] A support shaft, which penetrates through the fixing seat and is rotatably connected to the fixing seat;

[0014] The placing plate is sleeved outside the support shaft, and the placing plate rotates synchronously with the support shaft.

[0015] In an embodiment, the shielding assembly comprises:

[0016] a disc, the disc is arranged at the end of the support shaft, the disc is coaxially arranged with the support shaft, and the disc rotates synchronously with the support shaft;

[0017] a shielding plate, the shielding plate is slidingly connected to the outer side wall of the box body;

[0018] a connecting rod, a first end of the connecting rod is rotatably connected to a cylindrical pin on the disc, and a second end of the connecting rod is rotatably connected to a cylindrical pin on the shielding plate, the shielding plate is driven to slide on the outer side wall of the box body by the rotation of the disc.

[0019] In an embodiment, the shielding assembly further comprises:

[0020] a sliding groove block, the sliding groove block is arranged on the outer side wall of the box body, a sliding groove is arranged on the sliding groove block, the sliding groove extends along the length direction of the box body, the shielding plate is embedded in the sliding groove, and the shielding plate slides in the sliding groove.

[0021] In an embodiment, the placing assembly further comprises:

[0022] a gear, the gear is sleeved on the support shaft, and the gear rotates synchronously with the support shaft;

[0023] a rack, the rack is vertically arranged, and the rack is engaged with the gear;

[0024] a first transmission rod, a first end of the first transmission rod is connected to the rack;

[0025] a first spring, the first spring is arranged, a first end of the first spring is connected to the outer side wall of the box body, and a second end of the first spring is connected to a second end of the first transmission rod, the first spring supports the first transmission rod, and the first spring is in transmission connection with the box cover.

[0026] In an embodiment, the placing assembly further comprises:

[0027] a limiting plate, the limiting plate is connected to the first transmission rod, and the limiting plate moves synchronously with the first transmission rod;

[0028] a fixing hole, the fixing hole is arranged on the limiting plate;

[0029] a fixing plate, the fixing plate is arranged on the outer side wall of the box body, and the fixing plate is arranged parallel to the limiting plate;

[0030] a fixing pin, the fixing pin passes through the fixing plate and is embedded in the fixing hole, so that the position of the limiting plate is fixed.

[0031] In an embodiment, the placing assembly further comprises:

[0032] The second spring is arranged outside the fixed pin, the first end of the second spring is connected with the fixed plate, the second end of the second spring is connected with the fixed pin, and the second spring provides a pulling force for the fixed pin, so that the fixed pin can be automatically embedded into the fixed hole.

[0033] In an embodiment, the electronic technology experiment box further comprises:

[0034] The moving groove is vertically arranged on the inner side wall of the box body.

[0035] The sliding block is slidingly connected in the moving groove.

[0036] The second transmission rod is rotationally connected with the cylindrical pin on the inner side wall of the box cover at the first end, and rotationally connected with the cylindrical pin on the sliding block at the second end.

[0037] In an embodiment, the electronic technology experiment box further comprises:

[0038] The accommodating groove is arranged at the bottom end of the moving groove and penetrates through the side wall of the box body, and the first spring is embedded in the accommodating groove.

[0039] The extension plate is arranged in the accommodating groove, connected with the second end of the first spring, extended out of the box body, and connected with the second end of the first transmission rod.

[0040] Compared with the prior art, the electronic technology experiment box has the following beneficial effects:

[0041] The electronic technology experiment box comprises a box body, a box cover and a placing assembly. The box cover is used for preventing experimental equipment. The box cover is rotationally connected with the box body to protect the experimental equipment in the box body. The placing assembly is arranged outside the box body and is in transmission connection with the box cover. When the box cover is opened, the placing plate is flipped up to place experimental equipment on the placing plate, so that the experimental personnel can take the experimental equipment. The experimental equipment is placed on the placing plate to reduce the occupation of the space of the experimental table, so that more experimental equipment or experimental apparatus can be placed on the experimental table to ensure the orderly performance of the experiment. BRIEF DESCRIPTION OF DRAWINGS

[0042] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Moreover, the same reference numerals are used throughout the same figures. In the drawings:

[0043] Figure 1 FIG. 1 is a schematic structural diagram of an electronic technology experiment box according to an embodiment of the present application.

[0044] Figure 2 A schematic structural view of the inside of an electronic technology experiment box according to an embodiment of the present application is provided.

[0045] Figure 3 A schematic structural view of a shielding assembly of an electronic technology experiment box according to an embodiment of the present application is provided.

[0046] Figure 4 A schematic structural view of a placing assembly of an electronic technology experiment box according to an embodiment of the present application is provided.

[0047] Correspondence between reference signs and component names in the drawings is as follows: Figures 1 to 4 Correspondence between reference signs and component names in the drawings is as follows:

[0048] 11, box body; 12, box cover; 13, placing assembly; 14, heat dissipation hole; 15, shielding assembly; 16, fixing seat; 17, support shaft; 18, moving groove; 19, sliding block; 20, second transmission rod; 21, containing groove; 22, extension plate; 23, experiment equipment;

[0049] 1301, placing plate; 1302, gear; 1303, rack; 1304, first transmission rod; 1305, first spring; 1306, limiting plate; 1307, fixing hole; 1308, fixing plate; 1309, fixing pin; 1310, second spring;

[0050] 1501, disc; 1502, shielding plate; 1503, connecting rod; 1504, sliding groove block. DETAILED DESCRIPTION

[0051] In the description of the present application, it should be understood that the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0052] In addition, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0053] In this application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like, should be construed broadly and used in accordance with the general understanding of those terms (for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements). For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0054] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0055] As Figure 1 shown, according to the embodiments of the present application, an electronic technology experiment box is provided, comprising: a box body 11, a box cover 12 and a placing assembly 13; the box body 11 is a hollow cavity with an opening at the top; one end of the box cover 12 is rotatably connected with the box body 11, and the box cover 12 is buckled above the box body 11; the placing assembly 13 is arranged outside the box body 11, and the placing assembly 13 is drivingly connected with the box cover 12; the placing assembly 13 comprises a placing plate 1301, the placing plate 1301 is rotatably connected with the box body 11, and the placing plate 1301 is flipped and unfolded by opening the box cover 12.

[0056] The electronic technology experiment box provided by the embodiments of the present application comprises a box body 11, a box cover 12 and a placing assembly 13, the box cover 12 is used to prevent the experimental equipment 23, and the box cover 12 is rotatably connected with the box body 11 to protect the experimental equipment 23 in the box body 11 by covering the box cover 12; the placing assembly 13 is arranged outside the box body 11, and the placing assembly 13 is drivingly connected with the box cover 12, when the box cover 12 is opened, the placing plate 1301 is flipped and lifted, so that the experimental equipment is placed on the placing plate 1301, and the experimental personnel can take it, by placing the experimental equipment on the placing plate 1301, the space of the experiment table is occupied, so that more experimental equipment 23 or experimental equipment is placed on the experiment table, and the orderly experiment is ensured.

[0057] It can be understood that when the box cover 12 is gradually opened, the box cover 12 is flipped upward to drive the placing plate 1301 to flip, so that the placing plate 1301 is lifted to facilitate the placement of experimental equipment on the placing plate 1301; when the experiment is finished and the box cover 12 is gradually opened, the box cover 12 is flipped downward to drive the placing plate 1301 to flip, so that the placing plate 1301 falls to retract the placing plate 1301, and the volume of the experiment box is reduced, so that the experiment box is stored and transported.

[0058] As Figure 2 and Figure 3As shown in the figure, in a possible implementation, the electronic technology experiment box further comprises: a heat dissipation hole 14 and a shielding assembly 15, the heat dissipation hole 14 is arranged on the side wall of the box body 11, and the shielding assembly 15 is movably arranged on the outer side wall of the box body 11. The shielding assembly 15 is in transmission connection with the placement plate 1301, and the shielding assembly 15 shields the heat dissipation hole 14 by folding the placement plate 1301.

[0059] In the technical scheme, the shielding assembly 15 is in transmission connection with the placement plate 1301, when the box cover 12 is opened, the placement plate 1301 is flipped up, the placement plate 1301 drives the gear shifting assembly to move, so that the heat dissipation hole 14 is exposed, so as to facilitate heat dissipation of the experiment equipment 23 placed in the box body 11, and ensure normal operation of the experiment equipment 23; after the experiment is completed, the box cover 12 is closed, the placement plate 1301 falls back, the placement plate 1301 is folded to drive the shielding assembly 15 to move, so that the shielding assembly 15 shields the heat dissipation hole 14, so as to prevent external dust from entering the box body 11, and the experiment box has a dustproof function and protects the experiment equipment 23 placed inside.

[0060] As shown in the figure, Figure 1 and Figure 4 As shown in the figure, in a possible implementation, the electronic technology experiment box further comprises: a fixing seat 16 and a support shaft 17, the fixing seat 16 is arranged on the outer side wall of the box body 11, the support shaft 17 penetrates through the fixing seat 16, and the support shaft 17 is in rotation connection with the fixing seat 16; and the placement plate 1301 is sleeved on the outer side of the support shaft 17 and rotates synchronously with the support shaft 17.

[0061] In the technical scheme, the fixing seat 16 is fixedly connected to the outer side wall of the box body 11, the placement plate 1301 is fixedly connected to the support shaft 17, the placement plate 1301 rotates synchronously with the support shaft 17, and the fixing seat 16 supports the support shaft 17 and the placement plate 1301, so as to ensure reliable lifting and falling actions of the placement plate 1301.

[0062] As shown in the figure, Figure 3 As shown in the figure, in a possible implementation, the shielding assembly 15 comprises: a disc 1501, a shielding plate 1502 and a connecting rod 1503, the disc 1501 is arranged at the end of the support shaft 17, the disc 1501 is coaxially arranged with the support shaft 17 and rotates synchronously with the support shaft 17, the shielding plate 1502 is slidably connected to the outer side wall of the box body 11, the first end of the connecting rod 1503 is in rotation connection with a cylindrical pin on the disc 1501, the second end of the connecting rod 1503 is in rotation connection with a cylindrical pin on the shielding plate 1502, and the disc 1501 drives the shielding plate 1502 to slide on the outer side wall of the box body 11 by rotating.

[0063] In the technical scheme, the support shaft 17 rotates to drive the disc 1501 to rotate, the disc 1501 is connected with the shielding plate 1502 through the connecting rod 1503, the transmission rod converts the rotary motion of the disc 1501 into the linear motion of the shielding plate 1502, that is, the shielding plate 1502 is driven to move by the overturning of the placing plate 1301, so that the shielding plate 1502 is automatically moved to a position capable of shielding the heat dissipation hole 14 when the box cover 12 is closed, and the dustproof protection is provided for the experimental equipment 23; the shielding plate 1502 is automatically moved to a position capable of exposing the heat dissipation hole 14 when the box cover 12 is opened, and the rapid heat dissipation of the experimental equipment 23 during operation is ensured.

[0064] As shown in Figure 3 In a feasible implementation, the shielding assembly 15 further comprises a sliding groove block 1504, the sliding groove block 1504 is arranged on the outer side wall of the box body 11, the sliding groove block 1504 is provided with a sliding groove, the sliding groove extends along the length direction of the box body 11, and the shielding plate 1502 is embedded in the sliding groove and slides in the sliding groove.

[0065] In the technical scheme, the sliding groove block 1504 is fixed on the outer side wall of the box body 11 to guide the movement of the shielding plate 1502, and then the rotary motion of the disc 1501 is effectively converted into the linear motion of the shielding plate 1502, so that the shielding plate 1502 can be quickly moved to a specified position, and the heat dissipation hole 14 can be quickly opened or closed.

[0066] As shown in Figure 1 and Figure 4 In a feasible implementation, the placing assembly 13 further comprises a gear 1302, a rack 1303, a first transmission rod 1304 and a first spring 1305; the gear 1302 is sleeved on the support shaft 17 and rotates synchronously with the support shaft 17; the rack 1303 is vertically arranged and is engaged with the gear 1302; the first end of the first transmission rod 1304 is connected with the rack 1303; the first spring 1305 is arranged, the first end of the first spring 1305 is connected with the outer side wall of the box body 11, the second end of the first spring 1305 is connected with the second end of the first transmission rod 1304, the first spring 1305 supports the first transmission rod 1304, and the first spring 1305 is in transmission connection with the box cover 12.

[0067] In this technical solution, the first spring 1305 supports the first transmission rod 1304, the rack 1303 is connected to the first transmission rod 1304, the rack 1303 and the first transmission rod 1304 move synchronously, the rack 1303 meshes with the gear 1302, and the gear 1302 rotates synchronously with the support shaft 17. The first spring 1305 provides support force to the first transmission rod 1304, causing the first transmission rod 1304 and the rack 1303 to move upward. Then, the rack 1303 meshes with the gear 1302, causing the gear 1302 to rotate. The rotation of the gear 1302 drives the support shaft 17 to rotate, which in turn drives the placement plate 1301 to rotate, so that the placement plate 1301 completes the action of flipping and lifting upward.

[0068] In this technical solution, the lid 12 is connected to the first spring 1305. When the lid 12 is closed, it presses against the first spring 1305, compressing it. When the lid 12 is opened, the pressure of the lid on the first spring 1305 gradually decreases, and the first spring 1305 returns to its elastic deformation. The first spring 1305 pushes the first transmission rod 1304 upward, and the rack 1303 moves upward, driving the gear 1302 to rotate, causing the placement plate 1301 to flip upward and lift. When the lid 12 is closed, the pressure of the lid on the first spring 1305 gradually increases, compressing it. The first transmission rod 1304 is connected to the first spring 1305, and the first spring 1305 pulls the first transmission rod 1304 downward. The rack 1303 moves downward, driving the gear 1302 to rotate in the opposite direction, causing the placement plate 1301 to flip downward and retract.

[0069] like Figure 1 and Figure 4 As shown, in one feasible embodiment, the placement assembly 13 further includes: a limiting plate 1306, a fixing hole 1307, a fixing plate 1308, and a fixing pin 1309; the limiting plate 1306 is connected to the first transmission rod 1304, and the limiting plate 1306 and the first transmission rod 1304 move synchronously; the fixing hole 1307 is provided on the limiting plate 1306; the fixing plate 1308 is provided on the outer side wall of the housing 11, and the fixing plate 1308 is arranged parallel to the limiting plate 1306; the fixing pin 1309 passes through the fixing plate 1308 and is embedded in the fixing hole 1307 to fix the position of the limiting plate 1306.

[0070] In the technical scheme, the fixed plate 1308 is used for supporting the fixed pin 1309, the limiting plate 1306 moves up and down along with the first transmission rod 1304, the limiting plate 1306 is in sliding contact with the fixed pin 1309, the fixed hole 1307 is arranged on the limiting plate 1306, so that the fixed pin 1309 can be automatically embedded into the fixed hole 1307 in the sliding process of the limiting plate 1306, the position of the limiting plate 1306 is locked by the fixed pin 1309, and then the positions of the first transmission rod 1304 and the rack 1303 are locked, so that the angle of the placing plate 1301 is locked, the placing plate 1301 is prevented from freely turning over, and the stability and reliability of the placing plate 1301 in supporting experimental apparatuses are ensured.

[0071] As shown in Figure 1 and Figure 4 In a feasible implementation, the placing assembly 13 further includes a second spring 1310, the second spring 1310 is arranged outside the fixed pin 1309, a first end of the second spring 1310 is connected with the fixed plate 1308, a second end of the second spring 1310 is connected with the fixed pin 1309, and the second spring 1310 provides a pulling force for the fixed pin 1309, so that the fixed pin 1309 can be automatically embedded into the fixed hole 1307.

[0072] In the technical scheme, the second spring 1310 elastically connects the fixed pin 1309 and the fixed plate 1308, the second spring 1310 provides a pulling force for the fixed pin 1309, and the second spring 1310 pulls the fixed pin 1309 when the fixed pin 1309 passes through the fixed hole 1307, so that the fixed pin 1309 can be automatically embedded into the fixed hole 1307, and thus it is ensured that the placing plate 1301 can be automatically locked after the box cover 12 is opened to a certain angle, the operation is simple, and the use is convenient.

[0073] As shown in Figure 2 In a feasible implementation, the electronic technology experiment box further includes a moving groove 18, a sliding block 19 and a second transmission rod 20, the moving groove 18 is vertically arranged on the inner side wall of the box body 11, the sliding block 19 is slidingly connected in the moving groove 18, and the first end of the second transmission rod 20 is rotationally connected with a cylindrical pin on the inner side wall of the box cover 12, and the second end of the second transmission rod 20 is rotationally connected with a cylindrical pin on the sliding block 19.

[0074] In the technical scheme, the two ends of the second transmission rod 20 are connected with the box cover 12 and the sliding block 19 in the moving groove 18 respectively, the movement of the box cover 12 drives the movement of the second transmission rod 20, the movement of the second transmission rod 20 is guided by the moving groove 18, so that the second transmission rod 20 is in contact with the specified position of the placing assembly 13, the reliability of the transmission movement between the box cover 12 and the placing assembly 13 is ensured, and it is ensured that the opening / closing of the box cover 12 can quickly and effectively control the lifting / falling of the placing plate 1301.

[0075] As Figure 1 and Figure 4 As shown in a possible implementation, the electronic technology experiment box further comprises a containing groove 21 and an extension plate 22; the containing groove 21 is arranged at the bottom end of the moving groove 18, the containing groove 21 penetrates through the side wall of the box body 11, and the first spring 1305 is embedded in the containing groove 21; the extension plate 22 is arranged in the containing groove 21, the extension plate 22 is connected with the second end of the first spring 1305, the extension plate 22 extends out of the box body 11, and the extension plate 22 is connected with the second end of the first transmission rod 1304.

[0076] In the technical scheme, the containing groove 21 is arranged at the bottom end of the moving groove 18, the containing groove 21 is communicated with the moving groove 18, the first spring 1305 and the extension plate 22 are arranged in the containing groove 21, the containing groove 21 plays a role of giving way, and it is ensured that the pressure of the sliding block 19 can act on the extension plate 22 and the first spring 1305; the extension plate 22 extends out of the box body 11, and the extension plate 22 is connected with the second end of the first transmission rod 1304, through the arrangement of the extension plate 22, the first transmission rod 1304 is conveniently connected with the first spring 1305, and the first transmission rod 1304 can be completely located outside the box body 11, and the flexibility of the up-down movement of the first transmission rod 1304 is ensured.

[0077] In the technical scheme, when the box cover 12 is opened, the pressure of the box cover 12 on the first spring 1305 and the extension plate 22 gradually decreases, the first spring 1305 returns to elastic deformation, the first spring 1305 pushes the extension plate 22 to move upwards, and then drives the first transmission rod 1304 to move upwards, the rack 1303 moves upwards to drive the gear 1302 to rotate, and the placing plate 1301 is flipped upwards and lifted; when the box cover 12 is closed, the pressure of the box cover 12 on the first spring 1305 and the extension plate 22 gradually increases, the extension plate 22 is pressed to move downwards to compress the first spring 1305, and at the same time, the extension plate 22 drives the first transmission rod 1304 to move downwards, the rack 1303 moves downwards to drive the gear 1302 to rotate in the reverse direction, and the placing plate 1301 is flipped downwards and retracted.

[0078] It is easy for those skilled in the art to understand that the above-mentioned embodiments can be freely combined and superimposed without conflict.

[0079] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. An electronic technology experimental box, characterized in that, The electronic technology experimental box includes: The box body is a hollow cavity with an opening at the top; A lid, one end of which is rotatably connected to the box body, and the lid is fastened to the top of the box body; A placement assembly is disposed outside the box body and is movably connected to the box lid; the placement assembly includes a placement plate, which is rotatably connected to the box body and can be flipped open by opening the box lid.

2. The electronic technology experimental box according to claim 1, characterized in that, The electronic technology experiment box also includes: The ventilation holes are formed on the side wall of the housing; A shielding component is movably disposed on the outer side wall of the housing. The shielding component is convexly connected to the placement plate. By retracting the placement plate, the shielding component can block the heat dissipation hole.

3. The electronic technology experimental box according to claim 2, characterized in that, The electronic technology experiment box also includes: The fixing seat is disposed on the outer side wall of the housing; A support shaft passes through the fixed base and is rotatably connected to the fixed base; The placement plate is fitted onto the outside of the support shaft, and the placement plate rotates synchronously with the support shaft.

4. The electronic technology experimental box according to claim 3, characterized in that, The occlusion component includes: A disc is disposed at the end of the support shaft, the disc is coaxially arranged with the support shaft, and the disc rotates synchronously with the support shaft; A baffle plate, which is slidably connected to the outer side wall of the housing; A connecting rod, the first end of which is rotatably connected to a cylindrical pin on the disc, and the second end of which is rotatably connected to a cylindrical pin on the baffle plate. The disc rotates, causing the baffle plate to slide on the outer wall of the box.

5. An electronic technology experimental box according to claim 4, characterized in that, The shielding component also includes: A sliding block is provided on the outer side wall of the box body. The sliding block has a sliding groove that extends along the length of the box body. The baffle is embedded in the sliding groove and slides within the sliding groove.

6. An electronic technology experimental box according to claim 3, characterized in that, The placement component also includes: A gear, which is mounted on the support shaft and rotates synchronously with the support shaft; A rack, which is vertically arranged and meshes with the gear; A first transmission rod, the first end of which is connected to the rack; A first spring is provided, with its first end connected to the outer wall of the box body and its second end connected to the second end of the first transmission rod. The first spring supports the first transmission rod and is connected to the box cover in a transmission connection.

7. An electronic technology experimental box according to claim 6, characterized in that, The placement component also includes: A limiting plate is connected to the first transmission rod, and the limiting plate moves synchronously with the first transmission rod; A fixing hole is provided on the limiting plate; A fixing plate is disposed on the outer side wall of the housing and is arranged parallel to the limiting plate; A fixing pin passes through the fixing plate and is embedded in the fixing hole to fix the position of the limiting plate.

8. An electronic technology experimental box according to claim 7, characterized in that, The placement component also includes: The second spring is wound around the outside of the fixing pin. The first end of the second spring is connected to the fixing plate, and the second end of the second spring is connected to the fixing pin. The second spring provides tension to the fixing pin so that the fixing pin can automatically embed into the fixing hole.

9. An electronic technology experimental box according to claim 6, characterized in that, The electronic technology experiment box also includes: A movable groove, which is vertically arranged on the inner side wall of the housing; A slider, which is slidably connected within the movable slot; The second transmission rod has its first end rotatably connected to a cylindrical pin on the inner side wall of the box cover, and its second end rotatably connected to a cylindrical pin on the slider.

10. An electronic technology experimental box according to claim 9, characterized in that, The electronic technology experiment box also includes: A receiving groove is provided at the bottom end of the movable groove, the receiving groove penetrates the side wall of the box body, and the first spring is embedded in the receiving groove; An extension plate is disposed within the receiving groove, the extension plate is connected to the second end of the first spring, the extension plate extends outside the housing, and the extension plate is connected to the second end of the first transmission rod.

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