Simulation circuit board teaching demonstration device

Abstract

The utility model provides an analog circuit board teaching demonstration device, and the device comprises a bread board which is provided with a plurality of connection jacks; the shielding plate is in sliding connection with the bread board so as to shield or unshield the connecting insertion hole; wherein the baffle plate is provided with a plurality of through holes, and when the baffle plate slides on the bread board until the through holes are in one-to-one correspondence with the connecting jacks, the baffle plate unblocks the connecting jacks; and when the shielding plate slides on the bread board until the penetrating through holes and the connecting jacks are alternately arranged, the shielding plate shields the connecting jacks. According to the application, the shielding plate in sliding connection is arranged on the bread board so as to slide the shielding plate to change the position of the shielding plate on the bread board, so that the shielding plate shields or unshields the connecting jacks in the bread board, and the situation that the connecting jacks are exposed due to no shielding when not in use, and dust enters the connecting jacks is avoided; and poor contact of the connection jack is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching demonstration device technical field especially, it relates to a kind of simulation circuit board teaching demonstration device. BACKGROUND

[0002] Simulation circuit refers to the circuit for transmission, transformation, processing, amplification, measurement and display of analog signal, and in the process of simulation circuit teaching demonstration, breadboard is often used, because various electronic components can be inserted or pulled out at will according to needs, soldering is avoided, and the assembly time of circuit is saved, and components can be reused, so it is very suitable for teaching demonstration.

[0003] At present, the connection jack of the breadboard used for simulation circuit teaching demonstration is usually exposed when not in use, dust and impurities in the air are easy to enter the inside of the breadboard from the connection jack and contact with the internal metal conductive sheet, which can cause poor contact of the connection jack of the breadboard during use. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a simulation circuit board teaching demonstration device to solve the problem of poor contact of the simulation circuit board teaching demonstration device.

[0005] To achieve the above purpose, the utility model provides a simulation circuit board teaching demonstration device, which comprises:

[0006] A breadboard, which is provided with a plurality of connection jacks;

[0007] A shielding plate, which is slidably connected with the breadboard to shield or unshield the connection jacks;

[0008] The shielding plate is provided with a plurality of through holes, and when the shielding plate is slid on the breadboard to make the through holes correspond to the connection jacks one by one, the shielding plate unshields the connection jacks; when the shielding plate is slid on the breadboard to make the through holes and the connection jacks be arranged alternately, the shielding plate shields the connection jacks.

[0009] Further, the breadboard is provided with a dovetail sliding groove, one side of the shielding plate close to the breadboard is provided with a dovetail sliding block, and the dovetail sliding block is located in the dovetail sliding groove and slidably connected with the dovetail sliding groove.

[0010] Further, the shielding plate is provided with a first fixing hole and a second fixing hole, the first fixing hole and the second fixing hole are arranged along the length direction of the dovetail sliding groove in sequence, the breadboard is provided with a fixing groove, and the fixing groove is provided with an elastic protrusion.

[0011] When the shielding plate is slid on the breadboard to make the through holes correspond to the connecting jacks, the elastic protrusions are arranged through the first fixing holes; when the shielding plate is slid on the breadboard to make the through holes and the connecting jacks are arranged alternately, the elastic protrusions are arranged through the second fixing holes.

[0012] Further, the second fixing hole is provided with two, respectively located on both sides of the first fixing hole.

[0013] Further, the bottom of the breadboard is provided with a suction disc base.

[0014] Further, the opposite two sides of the breadboard are respectively provided with a T-shaped plug and a T-shaped slot, the T-shaped plug and the T-shaped slot are matched and oppositely arranged.

[0015] Further, the elastic protrusion comprises a connecting spiral spring and a sliding rod, the free end of the spiral spring is connected with the fixing groove, and the free end of the sliding rod is protrusively arranged relative to the fixing groove.

[0016] Further, the breadboard is further provided with a square sliding groove, the square sliding groove is arranged in parallel with the dovetail sliding groove, one side of the shielding plate close to the breadboard is provided with a square sliding block matched with the square sliding groove, and the square sliding block is located in the square sliding groove and is in sliding connection with the square sliding groove.

[0017] Further, the suction disc base is provided with four, respectively located on the four corners of the bottom of the breadboard.

[0018] Further, the T-shaped plug and the T-shaped slot are located on the side wall perpendicular to the sliding direction of the breadboard.

[0019] From the above, it can be seen that the simulation circuit board teaching demonstration device provided by the utility model changes the position of the shielding plate on the breadboard by setting the slidingly connected shielding plate on the breadboard, so that the shielding plate shields or unshields the connecting jacks on the breadboard, the shielding condition of the connecting jacks is changed according to the use requirement, the idle connecting jacks are prevented from being exposed to the outside, dust is prevented from entering the connecting jacks, and the poor contact condition of the connecting jacks is avoided, the practicality and service life of the breadboard are improved, and then the service life and demonstration effect of the simulation circuit board teaching demonstration device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is a structural schematic view of the simulation circuit board teaching demonstration device of the embodiment of the present application.

[0022] Figure 2 It is a structural schematic view of the breadboard of the embodiment of the present application.

[0023] Figure 3 It is a structural schematic view of the shielding plate of the embodiment of the present application.

[0024] Figure 4 It is Figure 1 It is a sectional structural schematic view in A-A direction.

[0025] In the figure: 10, breadboard; 11, connecting jack; 12, dovetail sliding groove; 13, fixed groove; 14, elastic protrusion; 141, spiral spring; 142, sliding rod; 15, T-shaped jack; 16, T-shaped slot; 17, square sliding groove; 20, shielding plate; 21, through hole; 22, dovetail sliding block; 23, first fixed hole; 24, second fixed hole; 25, square sliding block; 30, suction cup base. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with specific embodiments and with reference to the drawings.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the usual meanings understood by those skilled in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0028] As described in the background section, analog circuits are circuits used to transmit, transform, process, amplify, measure, and display analog signals. Breadboards are often used in teaching and demonstrations of analog circuits because various electronic components can be inserted or removed as needed, eliminating the need for soldering, saving circuit assembly time, and the components can be reused, making them very suitable for teaching demonstrations.

[0029] Currently, breadboards used for analog circuit teaching demonstrations typically have exposed connection holes when not in use. Dust and impurities in the air can easily enter the breadboard through these holes and come into contact with the internal metal conductive plates, potentially causing poor contact during use.

[0030] Based on this, this application proposes a simulated circuit board teaching demonstration device to solve the problem that dust and impurities can enter the interior through the exposed connection holes on the surface, resulting in poor contact of the connection holes.

[0031] The present application will be described in detail below through one or more specific embodiments.

[0032] In some embodiments, a simulated circuit board teaching demonstration device, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes:

[0033] Breadboard 10, which has multiple connection holes 11;

[0034] A shield 20 is slidably connected to the breadboard 10 to block or unblock the connection socket 11;

[0035] The shielding plate 20 is provided with multiple through holes 21. When the shielding plate 20 slides on the breadboard 10 until the through holes 21 correspond one-to-one with the connecting holes 11, the shielding plate 20 releases the shielding of the connecting holes 11. When the shielding plate 20 slides on the breadboard 10 until the through holes 21 and the connecting holes 11 are alternately arranged, the shielding plate 20 blocks the connecting holes 11.

[0036] Specifically, the breadboard 10 is the main structure of the simulated circuit board teaching demonstration device, and the connection socket 11 on it is a connection port to facilitate the connection of various components during teaching demonstrations. The shielding plate 20 is used to cover the side of the breadboard 10 with the connection socket 11, thereby shielding the connection socket 11.

[0037] The shielding plate 20 is provided with a plurality of through holes 21. When the through holes 21 are arranged opposite to the connecting jacks 11, the through holes 21 can be connected with the connecting jacks 11, so as to connect the connecting jacks 11 with devices. When the through holes 21 are arranged alternately with the connecting jacks 11, that is, the through holes 21 are arranged in a staggered manner, the positions of the shielding plate 20 without the through holes 21 cover the connecting jacks 11, so as to shield the connecting jacks 11, and avoid impurities and dust from entering the connecting jacks 11.

[0038] The shielding plate 20 is slidably connected with the breadboard 10. By sliding the shielding plate 20, the relative positions of the through holes 21 on the shielding plate 20 and the connecting jacks 11 on the breadboard 10 are changed, so as to switch the use and non-use of the analog circuit board teaching demonstration device.

[0039] For example, the top surface of the breadboard 10 is uniformly provided with a plurality of connecting jacks 11 (5 horizontally and 5 vertically). The shielding plate 20 is slidably connected with the breadboard 10 and covers the top surface. The shielding plate 20 is uniformly provided with a plurality of through holes 21 (5 horizontally and 5 vertically), which are the same in size, position and spacing as the connecting jacks 11. When the shielding plate 20 is slid so that the through holes 21 are opposite to the connecting jacks 11, the connecting jacks 11 can be used to connect devices. When the shielding plate 20 is slid so that the through holes 21 are arranged in a staggered manner with the connecting jacks 11, the shielding plate 20 shields the connecting jacks 11, and the connecting jacks 11 cannot be used to connect devices.

[0040] In this embodiment, the shielding plate 20 is slidably connected with the breadboard 10. By sliding the shielding plate 20 to change the position of the shielding plate 20 on the breadboard 10, the shielding plate 20 shields or unshields the connecting jacks 11 on the breadboard 10. According to the use requirement, the shielding condition of the connecting jacks 11 is changed. When the connecting jacks 11 are idle, they are not shielded, so as to be exposed to the outside, and dust enters the connecting jacks 11, which causes poor contact of the connecting jacks 11. This is beneficial to improve the practicability and service life of the breadboard 10, and further improve the service life and demonstration effect of the analog circuit board teaching demonstration device.

[0041] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the breadboard 10 is provided with a dovetail sliding groove 12. One side of the shielding plate 20 close to the breadboard 10 is provided with a dovetail sliding block 22. The dovetail sliding block 22 is located in the dovetail sliding groove 12 and is slidably connected with the dovetail sliding groove 12.

[0042] Specifically, the shielding plate 20 and the bread plate 10 are connected by the dovetail sliding block 22 and the dovetail sliding groove 12, the dovetail sliding block 22 is matched with the dovetail sliding groove 12, when the dovetail sliding block 22 is located in the dovetail sliding groove 12, the dovetail sliding block 22 can slide along the dovetail sliding groove 12, the shielding plate 20 moves with the dovetail sliding block 22, so that the shielding plate 20 can slide relative to the dovetail sliding groove 12 of the bread plate 10.

[0043] The dovetail sliding groove 12 is a straight line structure, so the shielding plate 20 can slide linearly on the bread plate 10, the sliding direction of the shielding plate 20 is the same as the length direction of the dovetail sliding groove 12.

[0044] In addition, the dovetail sliding block 22 and the dovetail sliding groove 12 are arranged so that the dovetail sliding block 22 can slide in the dovetail sliding groove 12, the opening of the dovetail sliding groove 12 is smaller than the bottom of the dovetail sliding groove 12, so that the dovetail sliding groove 12 can limit the dovetail sliding block 22, avoiding the dovetail sliding block 22 from leaving the dovetail sliding groove 12, thereby avoiding the shielding plate 20 from leaving the bread plate 10, so that the shielding plate 20 is stably arranged on the bread plate 10.

[0045] In this embodiment, the shielding plate 20 is connected with the dovetail sliding groove 12 on the bread plate 10 through the dovetail sliding block 22, which can not only ensure the stability of the connection between the shielding plate 20 and the bread plate 10, but also make the shielding plate 20 and the bread plate 10 fit, which is conducive to the connection between the through hole 21 on the shielding plate 20 and the connecting jack 11.

[0046] In some embodiments, as shown in Figure 1 、 Figure 2 and Figure 3 , the shielding plate 20 is provided with a first fixing hole 23 and a second fixing hole 24, the first fixing hole 23 and the second fixing hole 24 are arranged in sequence along the length direction of the dovetail sliding groove 12, the bread plate 10 is provided with a fixing groove 13, and the fixing groove 13 is provided with an elastic protrusion 14.

[0047] When the shielding plate 20 slides on the bread plate 10 to make the through hole 21 correspond to the connecting jack 11 one by one, the elastic protrusion 14 passes through the first fixing hole 23; when the shielding plate 20 slides on the bread plate 10 to make the through hole 21 and the connecting jack 11 arranged alternately, the elastic protrusion 14 passes through the second fixing hole 24.

[0048] Specifically, the first fixing hole 23 and the second fixing hole 24 are used for the elastic protrusion 14 to pass through, so that the relative position of the shielding plate 20 and the breadboard 10 is fixed, thereby facilitating the stability of the connection between the shielding plate 20 and the breadboard 10.

[0049] The first fixing hole 23 and the second fixing hole 24 are arranged in the length direction of the dovetail slide groove 12, so that when the shielding plate 20 shields the connection jack 11 on the breadboard 10 (i.e., the through hole 21 and the connection jack 11 are arranged alternately), the elastic protrusion 14 passes through the second fixing hole 24 to fix the relative position of the shielding plate 20 and the breadboard 10, and when the through hole 21 on the shielding plate 20 is arranged opposite to the connection jack 11 on the breadboard 10, i.e., the connection jack 11 is connected through the through hole 21, the elastic protrusion 14 passes through the first fixing hole 23 to fix the relative position of the shielding plate 20 and the breadboard 10, thereby achieving the fixation of the two relative positions of the shielding plate 20 and the breadboard 10, and facilitating the practicality and connection stability of the analog circuit board teaching demonstration device.

[0050] In some embodiments, as shown in Figure 3 The second fixing hole 24 is provided with two, which are respectively located on both sides of the first fixing hole 23.

[0051] Specifically, when the relative position of the through hole 21 of the shielding plate 20 and the connection jack 11 changes from one-to-one sliding to alternate arrangement, the shielding plate 20 can move in two directions of the dovetail slide groove 12, and the second fixing hole 24 is provided with two to meet the sliding of the shielding plate 20 in two directions of the dovetail slide groove 12, so that when the through hole 21 of the shielding plate 20 and the connection jack 11 are arranged alternately, the relative position of the shielding plate 20 and the breadboard 10 can be fixed by the elastic protrusion 14 and the second fixing hole 24, thereby facilitating the practicality of the analog circuit board teaching demonstration device.

[0052] In some embodiments, as shown in Figure 2 The bottom of the breadboard 10 is provided with a suction cup base 30.

[0053] Specifically, the suction cup base 30 is used to be adsorbed and fixedly connected with the plane where the breadboard 10 is located, so that the breadboard 10 is fixedly arranged on the plane, which is beneficial to improve the stability of the breadboard 10, and further improve the stability of the analog circuit board teaching demonstration device. In addition, the suction cup base 30 makes the connection of the breadboard 10 with the plane simple and convenient, which is beneficial to improve the practicability of the analog circuit board teaching demonstration device.

[0054] In some embodiments, as shown in Figure 2 Specifically, when a plurality of breadboards 10 are needed to be used, the T-shaped insertion block is inserted into the T-shaped insertion slot between adjacent breadboards 10, so that the splicing between the breadboards 10 is completed. The T-shaped insertion hole 15 and the T-shaped insertion slot 16 can improve the connection simplicity and stability of the breadboard 10.

[0055] Specifically, when a plurality of breadboards 10 are needed to be used, the T-shaped insertion block is inserted into the T-shaped insertion slot between adjacent breadboards 10, so that the splicing between the breadboards 10 is completed. The T-shaped insertion hole 15 and the T-shaped insertion slot 16 can improve the connection simplicity and stability of the breadboard 10.

[0056] In some embodiments, as shown in Figure 4 Specifically, the free end of the spiral spring 141 is located at the inner bottom of the fixed groove 13, and the spiral spring 141 is arranged towards the opening of the fixed groove 13 to drive the sliding rod 142 to protrude out of the fixed groove 13 and pass through the first fixing hole 23 or the second fixing hole 24.

[0057] Specifically, the free end of the spiral spring 141 is located at the inner bottom of the fixed groove 13, and the spiral spring 141 is arranged towards the opening of the fixed groove 13 to drive the sliding rod 142 to protrude out of the fixed groove 13 and pass through the first fixing hole 23 or the second fixing hole 24.

[0058] The sliding rod 142 is elastically arranged relative to the fixed groove 13, which can protrude out of the fixed groove 13 under the action of external force, and after the external force is removed, it protrudes out of the fixed groove 13 under the action of the elastic force of the spiral spring 141 to pass through the first fixing hole 23 or the second fixing hole 24, which can improve the simplicity of the fixed connection of the shielding plate 20 relative to the breadboard 10.

[0059] In some embodiments, as shown in Figure 2 and Figure 3 As shown in

[0060] Specifically, the square sliding groove 17 and the square sliding block 25 can enhance the sliding connection between the shielding plate 20 and the breadboard 10, so that the shielding plate 20 and the breadboard 10 are stably attached, and the sliding connection between the shielding plate 20 and the breadboard 10 is not affected, and the sliding connection smoothness of the shielding plate 20 and the breadboard 10 is improved.

[0061] In some embodiments, the four suction pad bases 30 are arranged at the four corners of the bottom of the breadboard 10.

[0062] Specifically, the four suction pad bases 30 are arranged at the four corners of the bottom of the breadboard 10, which can improve the stability of the breadboard 10 arranged on the plane, and can also avoid the suction pad bases 30 affecting the bottom line connection of the breadboard 10, thereby improving the practicability of the analog circuit board teaching demonstration device.

[0063] In some embodiments, the T-shaped plug and the T-shaped slot 16 are arranged on the side wall perpendicular to the sliding direction of the breadboard 10 and the shielding plate 20.

[0064] Specifically, when two or more breadboards 10 are connected, the two adjacent breadboards 10 are connected through the plug-in cooperation of the T-shaped plug and the T-shaped slot 16, and the T-shaped plug and the T-shaped slot 16 are arranged on the side wall perpendicular to the sliding direction of the breadboard 10 and the shielding plate 20, so that the dovetail sliding groove 12 on the two adjacent breadboards 10 is connected, and the shielding plate 20 can slide on the two adjacent breadboards 10, so that the shielding plate 20 can shield the connection jacks 11 on different breadboards 10, facilitating the installation and use of the shielding plate 20 on the breadboard 10, and improving the practicability of the analog circuit board teaching demonstration device.

[0065] Those skilled in the art will understand that the above discussion of any embodiment is only exemplary and is not intended to limit the scope of the application (including claims) to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details.

[0066] The embodiments of the present application are intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A teaching demonstration device for analog circuit boards, characterized in that, The utility model relates to a bread board is provided with a plurality of connecting jack on it, and a shielding plate is slidably connected with the bread board to shield or unshield the connecting jack. When the shielding plate is slid on the bread board to make the through holes correspond to the connecting jack one by one, the shielding plate unshields the connecting jack; when the shielding plate is slid on the bread board to make the through holes and the connecting jack be arranged alternately, the shielding plate shields the connecting jack. The bread board is provided with a dovetail sliding groove, and the shielding plate is provided with a dovetail sliding block on the side close to the bread board, which is located in the dovetail sliding groove and is slidably connected with the dovetail sliding groove. The shielding plate is provided with a first fixing hole and a second fixing hole, which are arranged along the length direction of the dovetail sliding groove in sequence, and the bread board is provided with a fixing groove in which an elastic protrusion is arranged. When the shielding plate is slid on the bread board to make the through holes correspond to the connecting jack one by one, the elastic protrusion is arranged through the first fixing hole; when the shielding plate is slid on the bread board to make the through holes and the connecting jack be arranged alternately, the elastic protrusion is arranged through the second fixing hole.

2. The analog circuit board teaching demonstration apparatus according to claim 1, characterized by The second fixing hole is provided with two, which are located on the two sides of the first fixing hole respectively. The bottom of the bread board is provided with a suction cup base.

3. The analog circuit board teaching demonstration apparatus according to claim 2, characterized by The opposite sides of the bread board are respectively provided with a T-shaped plug and a T-shaped slot, which are adapted and oppositely arranged.

4. The analog circuit board teaching demonstration apparatus according to claim 1, characterized by The elastic protrusion comprises a spiral spring and a sliding rod which are connected, the free end of the spiral spring is connected with the fixing groove, and the free end of the sliding rod is protrusively arranged relative to the fixing groove.

5. The analog circuit board teaching demonstration apparatus according to claim 1, wherein The bread board is further provided with a square sliding groove which is arranged in parallel with the dovetail sliding groove, the side close to the bread board of the shielding plate is provided with a square sliding block which is adapted with the square sliding groove, and the square sliding block is located in the square sliding groove and is slidably connected with the square sliding groove.

6. The analog circuit board teaching demonstration apparatus according to claim 2, wherein The suction cup base is provided with four, which are located on the four corners of the bottom of the bread board respectively.

7. The analog circuit board teaching demonstration apparatus according to claim 1, wherein The T-shaped plug and the T-shaped slot are located on the side wall perpendicular to the sliding direction of the bread board and the shielding plate.

8. The analog circuit board teaching demonstration apparatus according to claim 4, characterized by ​ 9. The analog circuit board teaching demonstration apparatus according to claim 5, wherein ​

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